---
_id: '59069'
abstract:
- lang: eng
text: Stable and bright single photon sources are key components for future
quantum applications. A simple fabrication method is an important requirement
for such sources. Here, we present a single photon source based on diced ridge
waveguides in titanium indiffused LiNbO3. These waveguides
can be easily fabricated by combining planar titanium in-diffusion without lithographic
patterning and easy-to-handle precision dicing. Such devices have the potential
to generate high single photon rates because ridge structures are typically less
prone to the photorefractive effect. We achieve waveguide propagation losses <0.4dBcm
and a SHG conversion efficiency of about 81%Wcm2. Harnessing
a type-0 SPDC process to generate 1550 nm photons, we obtain a SPDC brightness
of 3⋅1051s⋅mW⋅nm, with a heralding efficiency of ηh=45%
(ηh,wg=77.5% for the waveguide
itself excluded setup losses) and a heralded second-order correlation function
of gh2(0)<0.003
at low pump powers.
article_number: '593'
article_type: original
author:
- first_name: Christian
full_name: Kießler, Christian
id: '44252'
last_name: Kießler
- first_name: Michelle
full_name: Kirsch, Michelle
id: '69553'
last_name: Kirsch
- first_name: Sebastian
full_name: Lengeling, Sebastian
id: '44373'
last_name: Lengeling
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Kießler C, Kirsch M, Lengeling S, Herrmann H, Silberhorn C. SPDC single-photon
source in Ti-indiffused diced ridge LiNbO3 waveguides. Optics Continuum.
2025;4(3). doi:10.1364/optcon.557439
apa: Kießler, C., Kirsch, M., Lengeling, S., Herrmann, H., & Silberhorn, C.
(2025). SPDC single-photon source in Ti-indiffused diced ridge LiNbO3
waveguides. Optics Continuum, 4(3), Article 593. https://doi.org/10.1364/optcon.557439
bibtex: '@article{Kießler_Kirsch_Lengeling_Herrmann_Silberhorn_2025, title={SPDC
single-photon source in Ti-indiffused diced ridge LiNbO3 waveguides},
volume={4}, DOI={10.1364/optcon.557439},
number={3593}, journal={Optics Continuum}, publisher={Optica Publishing Group},
author={Kießler, Christian and Kirsch, Michelle and Lengeling, Sebastian and Herrmann,
Harald and Silberhorn, Christine}, year={2025} }'
chicago: Kießler, Christian, Michelle Kirsch, Sebastian Lengeling, Harald Herrmann,
and Christine Silberhorn. “SPDC Single-Photon Source in Ti-Indiffused Diced Ridge
LiNbO3 Waveguides.” Optics Continuum 4, no. 3 (2025). https://doi.org/10.1364/optcon.557439.
ieee: 'C. Kießler, M. Kirsch, S. Lengeling, H. Herrmann, and C. Silberhorn, “SPDC
single-photon source in Ti-indiffused diced ridge LiNbO3 waveguides,”
Optics Continuum, vol. 4, no. 3, Art. no. 593, 2025, doi: 10.1364/optcon.557439.'
mla: Kießler, Christian, et al. “SPDC Single-Photon Source in Ti-Indiffused Diced
Ridge LiNbO3 Waveguides.” Optics Continuum, vol. 4, no. 3, 593,
Optica Publishing Group, 2025, doi:10.1364/optcon.557439.
short: C. Kießler, M. Kirsch, S. Lengeling, H. Herrmann, C. Silberhorn, Optics Continuum
4 (2025).
date_created: 2025-03-19T10:56:04Z
date_updated: 2025-03-19T16:03:25Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1364/optcon.557439
intvolume: ' 4'
issue: '3'
language:
- iso: eng
publication: Optics Continuum
publication_identifier:
issn:
- 2770-0208
publication_status: published
publisher: Optica Publishing Group
status: public
title: SPDC single-photon source in Ti-indiffused diced ridge LiNbO3 waveguides
type: journal_article
user_id: '216'
volume: 4
year: '2025'
...
---
_id: '62269'
abstract:
- lang: eng
text: The titanium in-diffused lithium niobate waveguide platform is well-established
for reliable prototyping and packaging of many quantum photonic components at
room temperature. Nevertheless, compatibility with certain quantum light sources
and superconducting detectors requires operation under cryogenic conditions. We
characterize alterations in phase-matching and mode guiding of a non-degenerate
spontaneous parametric down-conversion process emitting around 1556 nm and 950 nm,
under cryogenic conditions. Despite the effects of pyroelectricity and photorefraction,
the spectral properties match our theoretical model. Nevertheless, these effects
cause small but significant variations within and between cooling cycles. These
measurements provide a first benchmark against which other nonlinear photonic
integration platforms, such as thin-film lithium niobate, can be compared.
article_number: '50451'
article_type: original
author:
- first_name: Nina Amelie
full_name: Lange, Nina Amelie
id: '56843'
last_name: Lange
orcid: 0000-0001-6624-7098
- first_name: Sebastian
full_name: Lengeling, Sebastian
id: '44373'
last_name: Lengeling
- first_name: Philipp
full_name: Mues, Philipp
id: '49772'
last_name: Mues
orcid: 0000-0003-0643-7636
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Werner
full_name: Ridder, Werner
id: '63574'
last_name: Ridder
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: Lange NA, Lengeling S, Mues P, et al. Widely non-degenerate nonlinear frequency
conversion in cryogenic titanium in-diffused lithium niobate waveguides. Optics
Express. 2025;33(24). doi:10.1364/oe.578108
apa: Lange, N. A., Lengeling, S., Mues, P., Quiring, V., Ridder, W., Eigner, C.,
Herrmann, H., Silberhorn, C., & Bartley, T. (2025). Widely non-degenerate
nonlinear frequency conversion in cryogenic titanium in-diffused lithium niobate
waveguides. Optics Express, 33(24), Article 50451. https://doi.org/10.1364/oe.578108
bibtex: '@article{Lange_Lengeling_Mues_Quiring_Ridder_Eigner_Herrmann_Silberhorn_Bartley_2025,
title={Widely non-degenerate nonlinear frequency conversion in cryogenic titanium
in-diffused lithium niobate waveguides}, volume={33}, DOI={10.1364/oe.578108},
number={2450451}, journal={Optics Express}, publisher={Optica Publishing Group},
author={Lange, Nina Amelie and Lengeling, Sebastian and Mues, Philipp and Quiring,
Viktor and Ridder, Werner and Eigner, Christof and Herrmann, Harald and Silberhorn,
Christine and Bartley, Tim}, year={2025} }'
chicago: Lange, Nina Amelie, Sebastian Lengeling, Philipp Mues, Viktor Quiring,
Werner Ridder, Christof Eigner, Harald Herrmann, Christine Silberhorn, and Tim
Bartley. “Widely Non-Degenerate Nonlinear Frequency Conversion in Cryogenic Titanium
in-Diffused Lithium Niobate Waveguides.” Optics Express 33, no. 24 (2025).
https://doi.org/10.1364/oe.578108.
ieee: 'N. A. Lange et al., “Widely non-degenerate nonlinear frequency conversion
in cryogenic titanium in-diffused lithium niobate waveguides,” Optics Express,
vol. 33, no. 24, Art. no. 50451, 2025, doi: 10.1364/oe.578108.'
mla: Lange, Nina Amelie, et al. “Widely Non-Degenerate Nonlinear Frequency Conversion
in Cryogenic Titanium in-Diffused Lithium Niobate Waveguides.” Optics Express,
vol. 33, no. 24, 50451, Optica Publishing Group, 2025, doi:10.1364/oe.578108.
short: N.A. Lange, S. Lengeling, P. Mues, V. Quiring, W. Ridder, C. Eigner, H. Herrmann,
C. Silberhorn, T. Bartley, Optics Express 33 (2025).
date_created: 2025-11-20T10:35:35Z
date_updated: 2025-12-12T12:13:45Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1364/oe.578108
intvolume: ' 33'
issue: '24'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '171'
name: 'TRR 142; TP C07: Hohlraum-verstärkte Parametrische Fluoreszenz mit zeitlicher
Filterung unter Verwendung integrierter supraleitender Detektoren'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Widely non-degenerate nonlinear frequency conversion in cryogenic titanium
in-diffused lithium niobate waveguides
type: journal_article
user_id: '49683'
volume: 33
year: '2025'
...
---
_id: '60466'
author:
- first_name: Julian
full_name: Brockmeier, Julian
id: '44807'
last_name: Brockmeier
- first_name: Timon
full_name: Schapeler, Timon
id: '55629'
last_name: Schapeler
orcid: 0000-0001-7652-1716
- first_name: Nina Amelie
full_name: Lange, Nina Amelie
id: '56843'
last_name: Lange
orcid: 0000-0001-6624-7098
- first_name: Jan Philipp
full_name: Höpker, Jan Philipp
id: '33913'
last_name: Höpker
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: Brockmeier J, Schapeler T, Lange NA, et al. Harnessing temporal dispersion
for integrated pump filtering in spontaneous heralded single-photon generation
processes. New Journal of Physics. Published online 2025. doi:10.1088/1367-2630/ade46c
apa: Brockmeier, J., Schapeler, T., Lange, N. A., Höpker, J. P., Herrmann, H., Silberhorn,
C., & Bartley, T. (2025). Harnessing temporal dispersion for integrated pump
filtering in spontaneous heralded single-photon generation processes. New Journal
of Physics. https://doi.org/10.1088/1367-2630/ade46c
bibtex: '@article{Brockmeier_Schapeler_Lange_Höpker_Herrmann_Silberhorn_Bartley_2025,
title={Harnessing temporal dispersion for integrated pump filtering in spontaneous
heralded single-photon generation processes}, DOI={10.1088/1367-2630/ade46c},
journal={New Journal of Physics}, author={Brockmeier, Julian and Schapeler, Timon
and Lange, Nina Amelie and Höpker, Jan Philipp and Herrmann, Harald and Silberhorn,
Christine and Bartley, Tim}, year={2025} }'
chicago: Brockmeier, Julian, Timon Schapeler, Nina Amelie Lange, Jan Philipp Höpker,
Harald Herrmann, Christine Silberhorn, and Tim Bartley. “Harnessing Temporal Dispersion
for Integrated Pump Filtering in Spontaneous Heralded Single-Photon Generation
Processes.” New Journal of Physics, 2025. https://doi.org/10.1088/1367-2630/ade46c.
ieee: 'J. Brockmeier et al., “Harnessing temporal dispersion for integrated
pump filtering in spontaneous heralded single-photon generation processes,” New
Journal of Physics, 2025, doi: 10.1088/1367-2630/ade46c.'
mla: Brockmeier, Julian, et al. “Harnessing Temporal Dispersion for Integrated Pump
Filtering in Spontaneous Heralded Single-Photon Generation Processes.” New
Journal of Physics, 2025, doi:10.1088/1367-2630/ade46c.
short: J. Brockmeier, T. Schapeler, N.A. Lange, J.P. Höpker, H. Herrmann, C. Silberhorn,
T. Bartley, New Journal of Physics (2025).
date_created: 2025-06-30T08:58:37Z
date_updated: 2025-12-15T09:21:29Z
department:
- _id: '15'
- _id: '623'
doi: 10.1088/1367-2630/ade46c
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '171'
name: 'TRR 142; TP C07: Hohlraum-verstärkte Parametrische Fluoreszenz mit zeitlicher
Filterung unter Verwendung integrierter supraleitender Detektoren'
publication: New Journal of Physics
status: public
title: Harnessing temporal dispersion for integrated pump filtering in spontaneous
heralded single-photon generation processes
type: journal_article
user_id: '56843'
year: '2025'
...
---
_id: '63192'
abstract:
- lang: eng
text: Lithium niobate (LiNbO3) is a widely used material with several desirable
physical properties, such as high second-order nonlinear optical and strong electro-optical
effects. Thus LiNbO3 is used for various applications such as electro-optic modulation
or nonlinear frequency conversion and mixing. But LiNbO3 also exhibits a strong
photorefractive effect, which limits the intensity of the optical fields involved.
Various approaches to reduce the photorefractive effect have been investigated,
such as increasing the temperature, doping the crystal or using different waveguide
designs in LiNbO3. Here, we present an analysis of the approach to increase the
photorefractive damage threshold by using different waveguide designs. Contrary
to previous claims and investigations, our SHG measurements revealed no significant
difference in resistance to photorefractive damage when comparing conventional
Ti-doped channel waveguides and Ti-doped diced ridge waveguides in LiNbO3. Furthermore,
we have investigated the effect of photorefractive cleaning and curing using a
light field at 532 nm. Here, we observe a reduction in the photorefractive effect
at room temperature during and after SHG measurements, which is an easy alternative
to conventional approaches.
article_number: '114260'
article_type: original
author:
- first_name: Michelle
full_name: Kirsch, Michelle
id: '69553'
last_name: Kirsch
- first_name: Christian
full_name: Kießler, Christian
id: '44252'
last_name: Kießler
- first_name: Sebastian
full_name: Lengeling, Sebastian
id: '44373'
last_name: Lengeling
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Kirsch M, Kießler C, Lengeling S, et al. Photorefraction and in-situ optical
cleaning in various types of LiNbO3 waveguides. Optics & Laser Technology.
2025;193. doi:10.1016/j.optlastec.2025.114260
apa: Kirsch, M., Kießler, C., Lengeling, S., Stefszky, M., Eigner, C., Herrmann,
H., & Silberhorn, C. (2025). Photorefraction and in-situ optical cleaning
in various types of LiNbO3 waveguides. Optics & Laser Technology, 193,
Article 114260. https://doi.org/10.1016/j.optlastec.2025.114260
bibtex: '@article{Kirsch_Kießler_Lengeling_Stefszky_Eigner_Herrmann_Silberhorn_2025,
title={Photorefraction and in-situ optical cleaning in various types of LiNbO3
waveguides}, volume={193}, DOI={10.1016/j.optlastec.2025.114260},
number={114260}, journal={Optics & Laser Technology}, publisher={Elsevier
BV}, author={Kirsch, Michelle and Kießler, Christian and Lengeling, Sebastian
and Stefszky, Michael and Eigner, Christof and Herrmann, Harald and Silberhorn,
Christine}, year={2025} }'
chicago: Kirsch, Michelle, Christian Kießler, Sebastian Lengeling, Michael Stefszky,
Christof Eigner, Harald Herrmann, and Christine Silberhorn. “Photorefraction and
In-Situ Optical Cleaning in Various Types of LiNbO3 Waveguides.” Optics &
Laser Technology 193 (2025). https://doi.org/10.1016/j.optlastec.2025.114260.
ieee: 'M. Kirsch et al., “Photorefraction and in-situ optical cleaning in
various types of LiNbO3 waveguides,” Optics & Laser Technology, vol.
193, Art. no. 114260, 2025, doi: 10.1016/j.optlastec.2025.114260.'
mla: Kirsch, Michelle, et al. “Photorefraction and In-Situ Optical Cleaning in Various
Types of LiNbO3 Waveguides.” Optics & Laser Technology, vol. 193, 114260,
Elsevier BV, 2025, doi:10.1016/j.optlastec.2025.114260.
short: M. Kirsch, C. Kießler, S. Lengeling, M. Stefszky, C. Eigner, H. Herrmann,
C. Silberhorn, Optics & Laser Technology 193 (2025).
date_created: 2025-12-18T08:17:57Z
date_updated: 2025-12-18T08:27:13Z
department:
- _id: '288'
- _id: '623'
- _id: '15'
doi: 10.1016/j.optlastec.2025.114260
intvolume: ' 193'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sciencedirect.com/science/article/pii/S0030399225018511?via%3Dihub
oa: '1'
publication: Optics & Laser Technology
publication_identifier:
issn:
- 0030-3992
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Photorefraction and in-situ optical cleaning in various types of LiNbO3 waveguides
type: journal_article
user_id: '69553'
volume: 193
year: '2025'
...
---
_id: '63091'
abstract:
- lang: eng
text: We present the design and characterization of a guided-wave, bright, and highly
frequency non-degenerate parametric down-conversion (PDC) source in thin-film
lithium niobate. The source generates photon pairs with wavelengths of 815 nm
and 1550 nm, linking the visible wavelength regime with telecommunication wavelengths.
We confirm the high quality of the generated single photons by determining a value
for the heralded second-order correlation function as low as g_h^(2)=(6.7+/-1.1)*10^8-3).
Furthermore, we achieve a high spectral brightness of 0.44·10pairs/(smWGHz) which
is two orders of magnitude higher than sources based on weakly guiding waveguides.
The shape of the PDC spectrum and the strong agreement between the effective and
nominal bandwidth highlight our high fabrication quality of periodically poled
waveguides. The good agreement between the measured and simulated spectral characteristics
of our source demonstrates our excellent understanding of the PDC process. Our
result is a valuable step towards practical and scalable quantum communication
networks as well as photonic quantum computing.
article_number: '52729'
article_type: original
author:
- first_name: Silia
full_name: Babel, Silia
id: '63231'
last_name: Babel
orcid: https://orcid.org/0000-0002-1568-2580
- first_name: Laura
full_name: Bollmers, Laura
id: '61375'
last_name: Bollmers
- first_name: Franz
full_name: Roeder, Franz
id: '88149'
last_name: Roeder
- first_name: Werner
full_name: Ridder, Werner
id: '63574'
last_name: Ridder
- first_name: Christian
full_name: Golla, Christian
id: '40420'
last_name: Golla
- first_name: Ronja
full_name: Köthemann, Ronja
last_name: Köthemann
- first_name: Bernhard
full_name: Reineke, Bernhard
id: '29821'
last_name: Reineke
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Laura
full_name: Padberg, Laura
id: '40300'
last_name: Padberg
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Babel S, Bollmers L, Roeder F, et al. Ultrabright, two-color photon pair source
based on thin-film lithium niobate for bridging visible and telecom wavelengths.
Optics Express. 2025;33(25). doi:10.1364/oe.571605
apa: Babel, S., Bollmers, L., Roeder, F., Ridder, W., Golla, C., Köthemann, R.,
Reineke, B., Herrmann, H., Brecht, B., Eigner, C., Padberg, L., & Silberhorn,
C. (2025). Ultrabright, two-color photon pair source based on thin-film lithium
niobate for bridging visible and telecom wavelengths. Optics Express, 33(25),
Article 52729. https://doi.org/10.1364/oe.571605
bibtex: '@article{Babel_Bollmers_Roeder_Ridder_Golla_Köthemann_Reineke_Herrmann_Brecht_Eigner_et
al._2025, title={Ultrabright, two-color photon pair source based on thin-film
lithium niobate for bridging visible and telecom wavelengths}, volume={33}, DOI={10.1364/oe.571605}, number={2552729},
journal={Optics Express}, publisher={Optica Publishing Group}, author={Babel,
Silia and Bollmers, Laura and Roeder, Franz and Ridder, Werner and Golla, Christian
and Köthemann, Ronja and Reineke, Bernhard and Herrmann, Harald and Brecht, Benjamin
and Eigner, Christof and et al.}, year={2025} }'
chicago: Babel, Silia, Laura Bollmers, Franz Roeder, Werner Ridder, Christian Golla,
Ronja Köthemann, Bernhard Reineke, et al. “Ultrabright, Two-Color Photon Pair
Source Based on Thin-Film Lithium Niobate for Bridging Visible and Telecom Wavelengths.”
Optics Express 33, no. 25 (2025). https://doi.org/10.1364/oe.571605.
ieee: 'S. Babel et al., “Ultrabright, two-color photon pair source based
on thin-film lithium niobate for bridging visible and telecom wavelengths,” Optics
Express, vol. 33, no. 25, Art. no. 52729, 2025, doi: 10.1364/oe.571605.'
mla: Babel, Silia, et al. “Ultrabright, Two-Color Photon Pair Source Based on Thin-Film
Lithium Niobate for Bridging Visible and Telecom Wavelengths.” Optics Express,
vol. 33, no. 25, 52729, Optica Publishing Group, 2025, doi:10.1364/oe.571605.
short: S. Babel, L. Bollmers, F. Roeder, W. Ridder, C. Golla, R. Köthemann, B. Reineke,
H. Herrmann, B. Brecht, C. Eigner, L. Padberg, C. Silberhorn, Optics Express 33
(2025).
date_created: 2025-12-15T07:20:36Z
date_updated: 2026-01-07T11:28:35Z
department:
- _id: '288'
- _id: '623'
doi: 10.1364/oe.571605
intvolume: ' 33'
issue: '25'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://opg.optica.org/oe/fulltext.cfm?uri=oe-33-25-52729
oa: '1'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Ultrabright, two-color photon pair source based on thin-film lithium niobate
for bridging visible and telecom wavelengths
type: journal_article
user_id: '63231'
volume: 33
year: '2025'
...
---
_id: '51339'
author:
- first_name: Jonas
full_name: Babai-Hemati, Jonas
last_name: Babai-Hemati
- first_name: Felix
full_name: vom Bruch, Felix
id: '71245'
last_name: vom Bruch
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Babai-Hemati J, vom Bruch F, Herrmann H, Silberhorn C. Tailored second harmonic
generation inTi-diffused PPLN waveguides usingmicro-heaters. Optics Express.
Published online 2024. doi:10.1364/oe.510319
apa: Babai-Hemati, J., vom Bruch, F., Herrmann, H., & Silberhorn, C. (2024).
Tailored second harmonic generation inTi-diffused PPLN waveguides usingmicro-heaters.
Optics Express. https://doi.org/10.1364/oe.510319
bibtex: '@article{Babai-Hemati_vom Bruch_Herrmann_Silberhorn_2024, title={Tailored
second harmonic generation inTi-diffused PPLN waveguides usingmicro-heaters},
DOI={10.1364/oe.510319}, journal={Optics
Express}, publisher={Optica Publishing Group}, author={Babai-Hemati, Jonas and
vom Bruch, Felix and Herrmann, Harald and Silberhorn, Christine}, year={2024}
}'
chicago: Babai-Hemati, Jonas, Felix vom Bruch, Harald Herrmann, and Christine Silberhorn.
“Tailored Second Harmonic Generation InTi-Diffused PPLN Waveguides Usingmicro-Heaters.”
Optics Express, 2024. https://doi.org/10.1364/oe.510319.
ieee: 'J. Babai-Hemati, F. vom Bruch, H. Herrmann, and C. Silberhorn, “Tailored
second harmonic generation inTi-diffused PPLN waveguides usingmicro-heaters,”
Optics Express, 2024, doi: 10.1364/oe.510319.'
mla: Babai-Hemati, Jonas, et al. “Tailored Second Harmonic Generation InTi-Diffused
PPLN Waveguides Usingmicro-Heaters.” Optics Express, Optica Publishing
Group, 2024, doi:10.1364/oe.510319.
short: J. Babai-Hemati, F. vom Bruch, H. Herrmann, C. Silberhorn, Optics Express
(2024).
date_created: 2024-02-13T13:03:01Z
date_updated: 2024-02-13T13:09:51Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1364/oe.510319
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
project:
- _id: '266'
grant_number: PROFILNRW-2020-067
name: 'PhoQC: PhoQC: Photonisches Quantencomputing'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Tailored second harmonic generation inTi-diffused PPLN waveguides usingmicro-heaters
type: journal_article
user_id: '216'
year: '2024'
...
---
_id: '57619'
abstract:
- lang: eng
text: Ferroelectric liquid crystals exhibiting a chiral smectic C* phase
are deposited on z cut periodically poled lithium niobate substrates and investigated
by polarized optical microscopy. While the pure substrates placed between crossed
polarizers and observed in transmission appear dark, uniformly aligned liquid
crystal films deposited on these substrates show alternating domains with varying
brightness. This effect can be attributed to the well-known coupling between the
direction of the spontaneous polarization and the optical axis in the birefringent
ferroelectric smectic C* phase. Quantitative measurements of the tilt angle between
the local optical axis and the smectic layer normal confirm antiparallel orientations
of spontaneous polarization of the liquid crystal from domain to domain, as expected
by the periodic poling of the lithium niobate substrate. This effect provides
a valuable non-destructive method of optical inspection of the quality of periodically
poled ferroelectric substrates, which plays an important role in achieving quasi-phase-matching
in non-linear optical applications.
author:
- first_name: Patrick A.
full_name: Meier, Patrick A.
last_name: Meier
- first_name: Susanne
full_name: Keuker-Baumann, Susanne
last_name: Keuker-Baumann
- first_name: Thorsten
full_name: Röder, Thorsten
last_name: Röder
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Raimund
full_name: Ricken, Raimund
last_name: Ricken
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
citation:
ama: Meier PA, Keuker-Baumann S, Röder T, et al. Optical imaging of ferroelectric
domains in periodically poled lithium niobate using ferroelectric liquid crystals.
Opto-Electronics Review. Published online 2024:150611-150611. doi:10.24425/opelre.2024.150611
apa: Meier, P. A., Keuker-Baumann, S., Röder, T., Herrmann, H., Ricken, R., Silberhorn,
C., & Kitzerow, H.-S. (2024). Optical imaging of ferroelectric domains in
periodically poled lithium niobate using ferroelectric liquid crystals. Opto-Electronics
Review, 150611–150611. https://doi.org/10.24425/opelre.2024.150611
bibtex: '@article{Meier_Keuker-Baumann_Röder_Herrmann_Ricken_Silberhorn_Kitzerow_2024,
title={Optical imaging of ferroelectric domains in periodically poled lithium
niobate using ferroelectric liquid crystals}, DOI={10.24425/opelre.2024.150611},
journal={Opto-Electronics Review}, publisher={Polish Academy of Sciences Chancellery},
author={Meier, Patrick A. and Keuker-Baumann, Susanne and Röder, Thorsten and
Herrmann, Harald and Ricken, Raimund and Silberhorn, Christine and Kitzerow, Heinz-Siegfried},
year={2024}, pages={150611–150611} }'
chicago: Meier, Patrick A., Susanne Keuker-Baumann, Thorsten Röder, Harald Herrmann,
Raimund Ricken, Christine Silberhorn, and Heinz-Siegfried Kitzerow. “Optical imaging
of ferroelectric domains in periodically poled lithium niobate using ferroelectric
liquid crystals.” Opto-Electronics Review, 2024, 150611–150611. https://doi.org/10.24425/opelre.2024.150611.
ieee: 'P. A. Meier et al., “Optical imaging of ferroelectric domains in periodically
poled lithium niobate using ferroelectric liquid crystals,” Opto-Electronics
Review, pp. 150611–150611, 2024, doi: 10.24425/opelre.2024.150611.'
mla: Meier, Patrick A., et al. “Optical imaging of ferroelectric domains in periodically
poled lithium niobate using ferroelectric liquid crystals.” Opto-Electronics
Review, Polish Academy of Sciences Chancellery, 2024, pp. 150611–150611, doi:10.24425/opelre.2024.150611.
short: P.A. Meier, S. Keuker-Baumann, T. Röder, H. Herrmann, R. Ricken, C. Silberhorn,
H.-S. Kitzerow, Opto-Electronics Review (2024) 150611–150611.
date_created: 2024-12-08T14:37:43Z
date_updated: 2024-12-08T14:45:39Z
department:
- _id: '313'
- _id: '230'
- _id: '2'
doi: 10.24425/opelre.2024.150611
language:
- iso: pol
page: 150611-150611
publication: Opto-Electronics Review
publication_identifier:
issn:
- 1896-3757
publication_status: published
publisher: Polish Academy of Sciences Chancellery
status: public
title: Optical imaging of ferroelectric domains in periodically poled lithium niobate
using ferroelectric liquid crystals
type: journal_article
user_id: '254'
year: '2024'
...
---
_id: '51356'
abstract:
- lang: eng
text: "Abstract\r\n Lithium niobate
has emerged as a promising platform for integrated quantum optics, enabling efficient
generation, manipulation, and detection of quantum states of light. However, integrating
single-photon detectors requires cryogenic operating temperatures, since the best
performing detectors are based on narrow superconducting wires. While previous
studies have demonstrated the operation of quantum light sources and electro-optic
modulators in LiNbO3 at cryogenic temperatures, the thermal
transition between room temperature and cryogenic conditions introduces additional
effects that can significantly influence device performance. In this paper, we
investigate the generation of pyroelectric charges and their impact on the optical
properties of lithium niobate waveguides when changing from room temperature to
25 K, and vice versa. We measure the generated pyroelectric charge flow and correlate
this with fast changes in the birefringence acquired through the Sénarmont-method.
Both electrical and optical influence of the pyroelectric effect occur predominantly
at temperatures above 100 K."
article_number: '015402'
author:
- first_name: Frederik
full_name: Thiele, Frederik
id: '50819'
last_name: Thiele
orcid: 0000-0003-0663-5587
- first_name: Thomas
full_name: Hummel, Thomas
id: '83846'
last_name: Hummel
orcid: 0000-0001-8627-2119
- first_name: Nina Amelie
full_name: Lange, Nina Amelie
id: '56843'
last_name: Lange
orcid: 0000-0001-6624-7098
- first_name: Felix
full_name: Dreher, Felix
last_name: Dreher
- first_name: Maximilian
full_name: Protte, Maximilian
last_name: Protte
- first_name: Felix vom
full_name: Bruch, Felix vom
last_name: Bruch
- first_name: Sebastian
full_name: Lengeling, Sebastian
id: '44373'
last_name: Lengeling
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: Thiele F, Hummel T, Lange NA, et al. Pyroelectric influence on lithium niobate
during the thermal transition for cryogenic integrated photonics. Materials
for Quantum Technology. 2024;4(1). doi:10.1088/2633-4356/ad207d
apa: Thiele, F., Hummel, T., Lange, N. A., Dreher, F., Protte, M., Bruch, F. vom,
Lengeling, S., Herrmann, H., Eigner, C., Silberhorn, C., & Bartley, T. (2024).
Pyroelectric influence on lithium niobate during the thermal transition for cryogenic
integrated photonics. Materials for Quantum Technology, 4(1), Article
015402. https://doi.org/10.1088/2633-4356/ad207d
bibtex: '@article{Thiele_Hummel_Lange_Dreher_Protte_Bruch_Lengeling_Herrmann_Eigner_Silberhorn_et
al._2024, title={Pyroelectric influence on lithium niobate during the thermal
transition for cryogenic integrated photonics}, volume={4}, DOI={10.1088/2633-4356/ad207d},
number={1015402}, journal={Materials for Quantum Technology}, publisher={IOP Publishing},
author={Thiele, Frederik and Hummel, Thomas and Lange, Nina Amelie and Dreher,
Felix and Protte, Maximilian and Bruch, Felix vom and Lengeling, Sebastian and
Herrmann, Harald and Eigner, Christof and Silberhorn, Christine and et al.}, year={2024}
}'
chicago: Thiele, Frederik, Thomas Hummel, Nina Amelie Lange, Felix Dreher, Maximilian
Protte, Felix vom Bruch, Sebastian Lengeling, et al. “Pyroelectric Influence on
Lithium Niobate during the Thermal Transition for Cryogenic Integrated Photonics.”
Materials for Quantum Technology 4, no. 1 (2024). https://doi.org/10.1088/2633-4356/ad207d.
ieee: 'F. Thiele et al., “Pyroelectric influence on lithium niobate during
the thermal transition for cryogenic integrated photonics,” Materials for Quantum
Technology, vol. 4, no. 1, Art. no. 015402, 2024, doi: 10.1088/2633-4356/ad207d.'
mla: Thiele, Frederik, et al. “Pyroelectric Influence on Lithium Niobate during
the Thermal Transition for Cryogenic Integrated Photonics.” Materials for Quantum
Technology, vol. 4, no. 1, 015402, IOP Publishing, 2024, doi:10.1088/2633-4356/ad207d.
short: F. Thiele, T. Hummel, N.A. Lange, F. Dreher, M. Protte, F. vom Bruch, S.
Lengeling, H. Herrmann, C. Eigner, C. Silberhorn, T. Bartley, Materials for Quantum
Technology 4 (2024).
date_created: 2024-02-16T07:56:44Z
date_updated: 2025-12-15T09:23:02Z
doi: 10.1088/2633-4356/ad207d
intvolume: ' 4'
issue: '1'
keyword:
- General Earth and Planetary Sciences
- General Environmental Science
language:
- iso: eng
project:
- _id: '171'
name: 'TRR 142; TP C07: Hohlraum-verstärkte Parametrische Fluoreszenz mit zeitlicher
Filterung unter Verwendung integrierter supraleitender Detektoren'
publication: Materials for Quantum Technology
publication_identifier:
issn:
- 2633-4356
publication_status: published
publisher: IOP Publishing
status: public
title: Pyroelectric influence on lithium niobate during the thermal transition for
cryogenic integrated photonics
type: journal_article
user_id: '56843'
volume: 4
year: '2024'
...
---
_id: '45850'
abstract:
- lang: eng
text: Interference between single photons is key for many quantum optics experiments
and applications in quantum technologies, such as quantum communication or computation.
It is advantageous to operate the systems at telecommunication wavelengths and
to integrate the setups for these applications in order to improve stability,
compactness and scalability. A new promising material platform for integrated
quantum optics is lithium niobate on insulator (LNOI). Here, we realise Hong-Ou-Mandel
(HOM) interference between telecom photons from an engineered parametric down-conversion
source in an LNOI directional coupler. The coupler has been designed and fabricated
in house and provides close to perfect balanced beam splitting. We obtain a raw
HOM visibility of (93.5 ± 0.7) %, limited mainly by the source performance and
in good agreement with off-chip measurements. This lays the foundation for more
sophisticated quantum experiments in LNOI.
article_number: '23140'
author:
- first_name: Silia
full_name: Babel, Silia
id: '63231'
last_name: Babel
orcid: https://orcid.org/0000-0002-1568-2580
- first_name: Laura
full_name: Bollmers, Laura
id: '61375'
last_name: Bollmers
- first_name: Marcello
full_name: Massaro, Marcello
id: '59545'
last_name: Massaro
orcid: 0000-0002-2539-7652
- first_name: Kai Hong
full_name: Luo, Kai Hong
id: '36389'
last_name: Luo
orcid: 0000-0003-1008-4976
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Federico
full_name: Pegoraro, Federico
id: '88928'
last_name: Pegoraro
- first_name: Philip
full_name: Held, Philip
id: '68236'
last_name: Held
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Laura
full_name: Padberg, Laura
id: '40300'
last_name: Padberg
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Babel S, Bollmers L, Massaro M, et al. Demonstration of Hong-Ou-Mandel interference
in an LNOI directional coupler. Optics Express. 2023;31(14). doi:10.1364/oe.484126
apa: Babel, S., Bollmers, L., Massaro, M., Luo, K. H., Stefszky, M., Pegoraro, F.,
Held, P., Herrmann, H., Eigner, C., Brecht, B., Padberg, L., & Silberhorn,
C. (2023). Demonstration of Hong-Ou-Mandel interference in an LNOI directional
coupler. Optics Express, 31(14), Article 23140. https://doi.org/10.1364/oe.484126
bibtex: '@article{Babel_Bollmers_Massaro_Luo_Stefszky_Pegoraro_Held_Herrmann_Eigner_Brecht_et
al._2023, title={Demonstration of Hong-Ou-Mandel interference in an LNOI directional
coupler}, volume={31}, DOI={10.1364/oe.484126},
number={1423140}, journal={Optics Express}, publisher={Optica Publishing Group},
author={Babel, Silia and Bollmers, Laura and Massaro, Marcello and Luo, Kai Hong
and Stefszky, Michael and Pegoraro, Federico and Held, Philip and Herrmann, Harald
and Eigner, Christof and Brecht, Benjamin and et al.}, year={2023} }'
chicago: Babel, Silia, Laura Bollmers, Marcello Massaro, Kai Hong Luo, Michael Stefszky,
Federico Pegoraro, Philip Held, et al. “Demonstration of Hong-Ou-Mandel Interference
in an LNOI Directional Coupler.” Optics Express 31, no. 14 (2023). https://doi.org/10.1364/oe.484126.
ieee: 'S. Babel et al., “Demonstration of Hong-Ou-Mandel interference in
an LNOI directional coupler,” Optics Express, vol. 31, no. 14, Art. no.
23140, 2023, doi: 10.1364/oe.484126.'
mla: Babel, Silia, et al. “Demonstration of Hong-Ou-Mandel Interference in an LNOI
Directional Coupler.” Optics Express, vol. 31, no. 14, 23140, Optica Publishing
Group, 2023, doi:10.1364/oe.484126.
short: S. Babel, L. Bollmers, M. Massaro, K.H. Luo, M. Stefszky, F. Pegoraro, P.
Held, H. Herrmann, C. Eigner, B. Brecht, L. Padberg, C. Silberhorn, Optics Express
31 (2023).
date_created: 2023-07-03T14:08:36Z
date_updated: 2023-07-05T07:58:31Z
department:
- _id: '15'
- _id: '230'
- _id: '623'
- _id: '288'
doi: 10.1364/oe.484126
intvolume: ' 31'
issue: '14'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler
type: journal_article
user_id: '63231'
volume: 31
year: '2023'
...
---
_id: '46138'
abstract:
- lang: eng
text: This work reports a fully guided setup for single-mode squeezing on
integrated titanium-indiffused periodically poled nonlinear resonators. A continuous-wave
laser beam is delivered and the squeezed field is collected by single-mode fibers;
up to −3.17(9) dB of useful squeezing is available in fibers. To showcase the
usefulness of such a fiber-coupled device, we applied the generated squeezed light
in a fiber-based phase sensing experiment, showing a quantum enhancement in the
signal-to-noise ratio of 0.35 dB. Moreover, our investigation of the effect of
photorefraction on the cavity resonance condition suggests that it causes system
instabilities at high powers.
article_number: '2999'
article_type: original
author:
- first_name: Renato
full_name: Domeneguetti, Renato
last_name: Domeneguetti
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Ulrik L.
full_name: Andersen, Ulrik L.
last_name: Andersen
- first_name: Jonas S.
full_name: Neergaard-Nielsen, Jonas S.
last_name: Neergaard-Nielsen
- first_name: Tobias
full_name: Gehring, Tobias
last_name: Gehring
citation:
ama: Domeneguetti R, Stefszky M, Herrmann H, et al. Fully guided and phase locked
Ti:PPLN waveguide squeezing for applications in quantum sensing. Optics Letters.
2023;48(11). doi:10.1364/ol.486654
apa: Domeneguetti, R., Stefszky, M., Herrmann, H., Silberhorn, C., Andersen, U.
L., Neergaard-Nielsen, J. S., & Gehring, T. (2023). Fully guided and phase
locked Ti:PPLN waveguide squeezing for applications in quantum sensing. Optics
Letters, 48(11), Article 2999. https://doi.org/10.1364/ol.486654
bibtex: '@article{Domeneguetti_Stefszky_Herrmann_Silberhorn_Andersen_Neergaard-Nielsen_Gehring_2023,
title={Fully guided and phase locked Ti:PPLN waveguide squeezing for applications
in quantum sensing}, volume={48}, DOI={10.1364/ol.486654},
number={112999}, journal={Optics Letters}, publisher={Optica Publishing Group},
author={Domeneguetti, Renato and Stefszky, Michael and Herrmann, Harald and Silberhorn,
Christine and Andersen, Ulrik L. and Neergaard-Nielsen, Jonas S. and Gehring,
Tobias}, year={2023} }'
chicago: Domeneguetti, Renato, Michael Stefszky, Harald Herrmann, Christine Silberhorn,
Ulrik L. Andersen, Jonas S. Neergaard-Nielsen, and Tobias Gehring. “Fully Guided
and Phase Locked Ti:PPLN Waveguide Squeezing for Applications in Quantum Sensing.”
Optics Letters 48, no. 11 (2023). https://doi.org/10.1364/ol.486654.
ieee: 'R. Domeneguetti et al., “Fully guided and phase locked Ti:PPLN waveguide
squeezing for applications in quantum sensing,” Optics Letters, vol. 48,
no. 11, Art. no. 2999, 2023, doi: 10.1364/ol.486654.'
mla: Domeneguetti, Renato, et al. “Fully Guided and Phase Locked Ti:PPLN Waveguide
Squeezing for Applications in Quantum Sensing.” Optics Letters, vol. 48,
no. 11, 2999, Optica Publishing Group, 2023, doi:10.1364/ol.486654.
short: R. Domeneguetti, M. Stefszky, H. Herrmann, C. Silberhorn, U.L. Andersen,
J.S. Neergaard-Nielsen, T. Gehring, Optics Letters 48 (2023).
date_created: 2023-07-25T10:35:24Z
date_updated: 2023-07-25T10:58:05Z
department:
- _id: '230'
- _id: '623'
- _id: '288'
doi: 10.1364/ol.486654
intvolume: ' 48'
issue: '11'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
project:
- _id: '218'
name: 'UNIQORN: UNIQORN - Affordable Quantum Communication for Everyone - EU Quantum
Flagship Project'
publication: Optics Letters
publication_identifier:
issn:
- 0146-9592
- 1539-4794
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
status: public
title: Fully guided and phase locked Ti:PPLN waveguide squeezing for applications
in quantum sensing
type: journal_article
user_id: '216'
volume: 48
year: '2023'
...
---
_id: '46644'
abstract:
- lang: eng
text: A reliable, but cost-effective generation of single-photon states is key for
practical quantum communication systems. For real-world deployment, waveguide
sources offer optimum compatibility with fiber networks and can be embedded in
hybrid integrated modules. Here, we present what we believe to be the first chip-size
fully integrated fiber-coupled heralded single photon source (HSPS) module based
on a hybrid integration of a nonlinear lithium niobate waveguide into a polymer
board. Photon pairs at 810 nm (signal) and 1550 nm (idler) are generated via parametric
down-conversion pumped at 532 nm in the LiNbO3 waveguide. The pairs are split
in the polymer board and routed to separate output ports. The module has a size
of (2 × 1) cm^2 and is fully fiber-coupled with one pump input fiber and two output
fibers. We measure a heralded second-order correlation function of g_h(2)=0.05
with a heralding efficiency of η_h=3.5% at low pump powers
article_number: '22685'
article_type: original
author:
- first_name: Christian
full_name: Kießler, Christian
id: '44252'
last_name: Kießler
- first_name: Hauke
full_name: Conradi, Hauke
last_name: Conradi
- first_name: Moritz
full_name: Kleinert, Moritz
last_name: Kleinert
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Kießler C, Conradi H, Kleinert M, Quiring V, Herrmann H, Silberhorn C. Fiber-coupled
plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology.
Optics Express. 2023;31(14). doi:10.1364/oe.487581
apa: Kießler, C., Conradi, H., Kleinert, M., Quiring, V., Herrmann, H., & Silberhorn,
C. (2023). Fiber-coupled plug-and-play heralded single photon source based on
Ti:LiNbO3 and polymer technology. Optics Express, 31(14), Article
22685. https://doi.org/10.1364/oe.487581
bibtex: '@article{Kießler_Conradi_Kleinert_Quiring_Herrmann_Silberhorn_2023, title={Fiber-coupled
plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology},
volume={31}, DOI={10.1364/oe.487581},
number={1422685}, journal={Optics Express}, publisher={Optica Publishing Group},
author={Kießler, Christian and Conradi, Hauke and Kleinert, Moritz and Quiring,
Viktor and Herrmann, Harald and Silberhorn, Christine}, year={2023} }'
chicago: Kießler, Christian, Hauke Conradi, Moritz Kleinert, Viktor Quiring, Harald
Herrmann, and Christine Silberhorn. “Fiber-Coupled Plug-and-Play Heralded Single
Photon Source Based on Ti:LiNbO3 and Polymer Technology.” Optics Express
31, no. 14 (2023). https://doi.org/10.1364/oe.487581.
ieee: 'C. Kießler, H. Conradi, M. Kleinert, V. Quiring, H. Herrmann, and C. Silberhorn,
“Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3
and polymer technology,” Optics Express, vol. 31, no. 14, Art. no. 22685,
2023, doi: 10.1364/oe.487581.'
mla: Kießler, Christian, et al. “Fiber-Coupled Plug-and-Play Heralded Single Photon
Source Based on Ti:LiNbO3 and Polymer Technology.” Optics Express, vol.
31, no. 14, 22685, Optica Publishing Group, 2023, doi:10.1364/oe.487581.
short: C. Kießler, H. Conradi, M. Kleinert, V. Quiring, H. Herrmann, C. Silberhorn,
Optics Express 31 (2023).
date_created: 2023-08-23T07:20:06Z
date_updated: 2023-08-23T07:25:37Z
doi: 10.1364/oe.487581
intvolume: ' 31'
issue: '14'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3
and polymer technology
type: journal_article
user_id: '44252'
volume: 31
year: '2023'
...
---
_id: '33672'
abstract:
- lang: eng
text: "Abstract\r\n Lithium niobate
is a promising platform for integrated quantum optics. In this platform, we aim
to efficiently manipulate and detect quantum states by combining superconducting
single photon detectors and modulators. The cryogenic operation of a superconducting
single photon detector dictates the optimisation of the electro-optic modulators
under the same operating conditions. To that end, we characterise a phase modulator,
directional coupler, and polarisation converter at both ambient and cryogenic
temperatures. The operation voltage \r\n \r\n \r\n \r\n V\r\n
\ \r\n π\r\n
\ \r\n /\r\n
\ \r\n 2\r\n
\ \r\n \r\n
\ \r\n \r\n of these
modulators increases, due to the decrease in the electro-optic effect, by 74%
for the phase modulator, 84% for the directional coupler and 35% for the polarisation
converter below 8.5\r\n \r\n \r\n \r\n K\r\n \r\n \r\n
\ \r\n .
The phase modulator preserves its broadband nature and modulates light in the
characterised wavelength range. The unbiased bar state of the directional coupler
changed by a wavelength shift of 85\r\n \r\n \r\n \r\n n\r\n m\r\n
\ \r\n \r\n \r\n while cooling
the device down to 5\r\n \r\n \r\n \r\n K\r\n \r\n \r\n
\ \r\n .
The polarisation converter uses periodic poling to phasematch the two orthogonal
polarisations. The phasematched wavelength of the utilised poling changes by 112\r\n
\ \r\n
\ \r\n \r\n n\r\n m\r\n
\ \r\n \r\n \r\n when cooling
to 5\r\n \r\n
\ \r\n \r\n K\r\n \r\n \r\n
\ \r\n ."
article_number: '034004'
author:
- first_name: Frederik
full_name: Thiele, Frederik
id: '50819'
last_name: Thiele
orcid: 0000-0003-0663-5587
- first_name: Felix
full_name: vom Bruch, Felix
id: '71245'
last_name: vom Bruch
- first_name: Julian
full_name: Brockmeier, Julian
id: '44807'
last_name: Brockmeier
- first_name: Maximilian
full_name: Protte, Maximilian
id: '46170'
last_name: Protte
- first_name: Thomas
full_name: Hummel, Thomas
id: '83846'
last_name: Hummel
- first_name: Raimund
full_name: Ricken, Raimund
last_name: Ricken
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Sebastian
full_name: Lengeling, Sebastian
id: '44373'
last_name: Lengeling
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: 'Thiele F, vom Bruch F, Brockmeier J, et al. Cryogenic electro-optic modulation
in titanium in-diffused lithium niobate waveguides. Journal of Physics: Photonics.
2022;4(3). doi:10.1088/2515-7647/ac6c63'
apa: 'Thiele, F., vom Bruch, F., Brockmeier, J., Protte, M., Hummel, T., Ricken,
R., Quiring, V., Lengeling, S., Herrmann, H., Eigner, C., Silberhorn, C., &
Bartley, T. (2022). Cryogenic electro-optic modulation in titanium in-diffused
lithium niobate waveguides. Journal of Physics: Photonics, 4(3),
Article 034004. https://doi.org/10.1088/2515-7647/ac6c63'
bibtex: '@article{Thiele_vom Bruch_Brockmeier_Protte_Hummel_Ricken_Quiring_Lengeling_Herrmann_Eigner_et
al._2022, title={Cryogenic electro-optic modulation in titanium in-diffused lithium
niobate waveguides}, volume={4}, DOI={10.1088/2515-7647/ac6c63},
number={3034004}, journal={Journal of Physics: Photonics}, publisher={IOP Publishing},
author={Thiele, Frederik and vom Bruch, Felix and Brockmeier, Julian and Protte,
Maximilian and Hummel, Thomas and Ricken, Raimund and Quiring, Viktor and Lengeling,
Sebastian and Herrmann, Harald and Eigner, Christof and et al.}, year={2022} }'
chicago: 'Thiele, Frederik, Felix vom Bruch, Julian Brockmeier, Maximilian Protte,
Thomas Hummel, Raimund Ricken, Viktor Quiring, et al. “Cryogenic Electro-Optic
Modulation in Titanium in-Diffused Lithium Niobate Waveguides.” Journal of
Physics: Photonics 4, no. 3 (2022). https://doi.org/10.1088/2515-7647/ac6c63.'
ieee: 'F. Thiele et al., “Cryogenic electro-optic modulation in titanium
in-diffused lithium niobate waveguides,” Journal of Physics: Photonics,
vol. 4, no. 3, Art. no. 034004, 2022, doi: 10.1088/2515-7647/ac6c63.'
mla: 'Thiele, Frederik, et al. “Cryogenic Electro-Optic Modulation in Titanium in-Diffused
Lithium Niobate Waveguides.” Journal of Physics: Photonics, vol. 4, no.
3, 034004, IOP Publishing, 2022, doi:10.1088/2515-7647/ac6c63.'
short: 'F. Thiele, F. vom Bruch, J. Brockmeier, M. Protte, T. Hummel, R. Ricken,
V. Quiring, S. Lengeling, H. Herrmann, C. Eigner, C. Silberhorn, T. Bartley, Journal
of Physics: Photonics 4 (2022).'
date_created: 2022-10-11T07:14:40Z
date_updated: 2023-01-12T15:16:35Z
department:
- _id: '15'
- _id: '230'
- _id: '623'
doi: 10.1088/2515-7647/ac6c63
intvolume: ' 4'
issue: '3'
keyword:
- Electrical and Electronic Engineering
- Atomic and Molecular Physics
- and Optics
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
publication: 'Journal of Physics: Photonics'
publication_identifier:
issn:
- 2515-7647
publication_status: published
publisher: IOP Publishing
status: public
title: Cryogenic electro-optic modulation in titanium in-diffused lithium niobate
waveguides
type: journal_article
user_id: '83846'
volume: 4
year: '2022'
...
---
_id: '38532'
author:
- first_name: Alessandro
full_name: Trenti, Alessandro
last_name: Trenti
- first_name: Martin
full_name: Achleitner, Martin
last_name: Achleitner
- first_name: Florian
full_name: Prawits, Florian
last_name: Prawits
- first_name: Bernhard
full_name: Schrenk, Bernhard
last_name: Schrenk
- first_name: Hauke
full_name: Conradi, Hauke
last_name: Conradi
- first_name: Moritz
full_name: Kleinert, Moritz
last_name: Kleinert
- first_name: Alfonso
full_name: Incoronato, Alfonso
last_name: Incoronato
- first_name: Francesco
full_name: Zanetto, Francesco
last_name: Zanetto
- first_name: Franco
full_name: Zappa, Franco
last_name: Zappa
- first_name: Ilaria Di
full_name: Luch, Ilaria Di
last_name: Luch
- first_name: Ozan
full_name: Cirkinoglu, Ozan
last_name: Cirkinoglu
- first_name: Xaveer
full_name: Leijtens, Xaveer
last_name: Leijtens
- first_name: Antonio
full_name: Bonardi, Antonio
last_name: Bonardi
- first_name: Cedric
full_name: Bruynsteen, Cedric
last_name: Bruynsteen
- first_name: Xin
full_name: Yin, Xin
last_name: Yin
- first_name: Christian
full_name: Kießler, Christian
id: '44252'
last_name: Kießler
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Mathieu
full_name: Bozzio, Mathieu
last_name: Bozzio
- first_name: Philip
full_name: Walther, Philip
last_name: Walther
- first_name: Hannah C.
full_name: Thiel, Hannah C.
last_name: Thiel
- first_name: Gregor
full_name: Weihs, Gregor
last_name: Weihs
- first_name: Hannes
full_name: Hubel, Hannes
last_name: Hubel
citation:
ama: Trenti A, Achleitner M, Prawits F, et al. On-Chip Quantum Communication Devices.
Journal of Lightwave Technology. 2022;40(23):7485-7497. doi:10.1109/jlt.2022.3201389
apa: Trenti, A., Achleitner, M., Prawits, F., Schrenk, B., Conradi, H., Kleinert,
M., Incoronato, A., Zanetto, F., Zappa, F., Luch, I. D., Cirkinoglu, O., Leijtens,
X., Bonardi, A., Bruynsteen, C., Yin, X., Kießler, C., Herrmann, H., Silberhorn,
C., Bozzio, M., … Hubel, H. (2022). On-Chip Quantum Communication Devices. Journal
of Lightwave Technology, 40(23), 7485–7497. https://doi.org/10.1109/jlt.2022.3201389
bibtex: '@article{Trenti_Achleitner_Prawits_Schrenk_Conradi_Kleinert_Incoronato_Zanetto_Zappa_Luch_et
al._2022, title={On-Chip Quantum Communication Devices}, volume={40}, DOI={10.1109/jlt.2022.3201389},
number={23}, journal={Journal of Lightwave Technology}, publisher={Institute of
Electrical and Electronics Engineers (IEEE)}, author={Trenti, Alessandro and Achleitner,
Martin and Prawits, Florian and Schrenk, Bernhard and Conradi, Hauke and Kleinert,
Moritz and Incoronato, Alfonso and Zanetto, Francesco and Zappa, Franco and Luch,
Ilaria Di and et al.}, year={2022}, pages={7485–7497} }'
chicago: 'Trenti, Alessandro, Martin Achleitner, Florian Prawits, Bernhard Schrenk,
Hauke Conradi, Moritz Kleinert, Alfonso Incoronato, et al. “On-Chip Quantum Communication
Devices.” Journal of Lightwave Technology 40, no. 23 (2022): 7485–97. https://doi.org/10.1109/jlt.2022.3201389.'
ieee: 'A. Trenti et al., “On-Chip Quantum Communication Devices,” Journal
of Lightwave Technology, vol. 40, no. 23, pp. 7485–7497, 2022, doi: 10.1109/jlt.2022.3201389.'
mla: Trenti, Alessandro, et al. “On-Chip Quantum Communication Devices.” Journal
of Lightwave Technology, vol. 40, no. 23, Institute of Electrical and Electronics
Engineers (IEEE), 2022, pp. 7485–97, doi:10.1109/jlt.2022.3201389.
short: A. Trenti, M. Achleitner, F. Prawits, B. Schrenk, H. Conradi, M. Kleinert,
A. Incoronato, F. Zanetto, F. Zappa, I.D. Luch, O. Cirkinoglu, X. Leijtens, A.
Bonardi, C. Bruynsteen, X. Yin, C. Kießler, H. Herrmann, C. Silberhorn, M. Bozzio,
P. Walther, H.C. Thiel, G. Weihs, H. Hubel, Journal of Lightwave Technology 40
(2022) 7485–7497.
date_created: 2023-01-24T07:41:40Z
date_updated: 2023-01-26T09:10:58Z
doi: 10.1109/jlt.2022.3201389
intvolume: ' 40'
issue: '23'
keyword:
- General Engineering
language:
- iso: eng
page: 7485-7497
publication: Journal of Lightwave Technology
publication_identifier:
issn:
- 0733-8724
- 1558-2213
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: On-Chip Quantum Communication Devices
type: journal_article
user_id: '44252'
volume: 40
year: '2022'
...
---
_id: '26221'
author:
- first_name: Moritz
full_name: Bartnick, Moritz
last_name: Bartnick
- first_name: Matteo
full_name: Santandrea, Matteo
id: '55095'
last_name: Santandrea
orcid: 0000-0001-5718-358X
- first_name: Jan Philipp
full_name: Höpker, Jan Philipp
id: '33913'
last_name: Höpker
- first_name: Frederik
full_name: Thiele, Frederik
id: '50819'
last_name: Thiele
orcid: 0000-0003-0663-5587
- first_name: Raimund
full_name: Ricken, Raimund
last_name: Ricken
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: Bartnick M, Santandrea M, Höpker JP, et al. Cryogenic Second-Harmonic Generation
in Periodically Poled Lithium Niobate Waveguides. Physical Review Applied.
Published online 2021. doi:10.1103/physrevapplied.15.024028
apa: Bartnick, M., Santandrea, M., Höpker, J. P., Thiele, F., Ricken, R., Quiring,
V., Eigner, C., Herrmann, H., Silberhorn, C., & Bartley, T. (2021). Cryogenic
Second-Harmonic Generation in Periodically Poled Lithium Niobate Waveguides. Physical
Review Applied. https://doi.org/10.1103/physrevapplied.15.024028
bibtex: '@article{Bartnick_Santandrea_Höpker_Thiele_Ricken_Quiring_Eigner_Herrmann_Silberhorn_Bartley_2021,
title={Cryogenic Second-Harmonic Generation in Periodically Poled Lithium Niobate
Waveguides}, DOI={10.1103/physrevapplied.15.024028},
journal={Physical Review Applied}, author={Bartnick, Moritz and Santandrea, Matteo
and Höpker, Jan Philipp and Thiele, Frederik and Ricken, Raimund and Quiring,
Viktor and Eigner, Christof and Herrmann, Harald and Silberhorn, Christine and
Bartley, Tim}, year={2021} }'
chicago: Bartnick, Moritz, Matteo Santandrea, Jan Philipp Höpker, Frederik Thiele,
Raimund Ricken, Viktor Quiring, Christof Eigner, Harald Herrmann, Christine Silberhorn,
and Tim Bartley. “Cryogenic Second-Harmonic Generation in Periodically Poled Lithium
Niobate Waveguides.” Physical Review Applied, 2021. https://doi.org/10.1103/physrevapplied.15.024028.
ieee: 'M. Bartnick et al., “Cryogenic Second-Harmonic Generation in Periodically
Poled Lithium Niobate Waveguides,” Physical Review Applied, 2021, doi:
10.1103/physrevapplied.15.024028.'
mla: Bartnick, Moritz, et al. “Cryogenic Second-Harmonic Generation in Periodically
Poled Lithium Niobate Waveguides.” Physical Review Applied, 2021, doi:10.1103/physrevapplied.15.024028.
short: M. Bartnick, M. Santandrea, J.P. Höpker, F. Thiele, R. Ricken, V. Quiring,
C. Eigner, H. Herrmann, C. Silberhorn, T. Bartley, Physical Review Applied (2021).
date_created: 2021-10-15T09:24:10Z
date_updated: 2023-01-12T13:39:50Z
department:
- _id: '230'
doi: 10.1103/physrevapplied.15.024028
language:
- iso: eng
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
status: public
title: Cryogenic Second-Harmonic Generation in Periodically Poled Lithium Niobate
Waveguides
type: journal_article
user_id: '33913'
year: '2021'
...
---
_id: '26889'
author:
- first_name: Kai Hong
full_name: Luo, Kai Hong
id: '36389'
last_name: Luo
orcid: 0000-0003-1008-4976
- first_name: Matteo
full_name: Santandrea, Matteo
id: '55095'
last_name: Santandrea
orcid: 0000-0001-5718-358X
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Jan
full_name: Sperling, Jan
id: '75127'
last_name: Sperling
orcid: 0000-0002-5844-3205
- first_name: Marcello
full_name: Massaro, Marcello
id: '59545'
last_name: Massaro
orcid: 0000-0002-2539-7652
- first_name: Alessandro
full_name: Ferreri, Alessandro
id: '65609'
last_name: Ferreri
- first_name: Polina
full_name: Sharapova, Polina
id: '60286'
last_name: Sharapova
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: 'Luo KH, Santandrea M, Stefszky M, et al. Quantum optical coherence: From linear
to nonlinear interferometers. Physical Review A. Published online 2021.
doi:10.1103/physreva.104.043707'
apa: 'Luo, K. H., Santandrea, M., Stefszky, M., Sperling, J., Massaro, M., Ferreri,
A., Sharapova, P., Herrmann, H., & Silberhorn, C. (2021). Quantum optical
coherence: From linear to nonlinear interferometers. Physical Review A.
https://doi.org/10.1103/physreva.104.043707'
bibtex: '@article{Luo_Santandrea_Stefszky_Sperling_Massaro_Ferreri_Sharapova_Herrmann_Silberhorn_2021,
title={Quantum optical coherence: From linear to nonlinear interferometers}, DOI={10.1103/physreva.104.043707},
journal={Physical Review A}, author={Luo, Kai Hong and Santandrea, Matteo and
Stefszky, Michael and Sperling, Jan and Massaro, Marcello and Ferreri, Alessandro
and Sharapova, Polina and Herrmann, Harald and Silberhorn, Christine}, year={2021}
}'
chicago: 'Luo, Kai Hong, Matteo Santandrea, Michael Stefszky, Jan Sperling, Marcello
Massaro, Alessandro Ferreri, Polina Sharapova, Harald Herrmann, and Christine
Silberhorn. “Quantum Optical Coherence: From Linear to Nonlinear Interferometers.”
Physical Review A, 2021. https://doi.org/10.1103/physreva.104.043707.'
ieee: 'K. H. Luo et al., “Quantum optical coherence: From linear to nonlinear
interferometers,” Physical Review A, 2021, doi: 10.1103/physreva.104.043707.'
mla: 'Luo, Kai Hong, et al. “Quantum Optical Coherence: From Linear to Nonlinear
Interferometers.” Physical Review A, 2021, doi:10.1103/physreva.104.043707.'
short: K.H. Luo, M. Santandrea, M. Stefszky, J. Sperling, M. Massaro, A. Ferreri,
P. Sharapova, H. Herrmann, C. Silberhorn, Physical Review A (2021).
date_created: 2021-10-26T12:42:16Z
date_updated: 2023-04-20T15:08:25Z
department:
- _id: '15'
- _id: '170'
- _id: '569'
- _id: '706'
- _id: '288'
- _id: '230'
- _id: '429'
- _id: '35'
doi: 10.1103/physreva.104.043707
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '72'
name: 'TRR 142 - C2: TRR 142 - Subproject C2'
publication: Physical Review A
publication_identifier:
issn:
- 2469-9926
- 2469-9934
publication_status: published
status: public
title: 'Quantum optical coherence: From linear to nonlinear interferometers'
type: journal_article
user_id: '16199'
year: '2021'
...
---
_id: '26077'
abstract:
- lang: eng
text: Nonlinear SU(1,1) interferometers are fruitful and promising tools
for spectral engineering and precise measurements with phase sensitivity below
the classical bound. Such interferometers have been successfully realized in bulk
and fiber-based configurations. However, rapidly developing integrated technologies
provide higher efficiencies, smaller footprints, and pave the way to quantum-enhanced
on-chip interferometry. In this work, we theoretically realised an integrated
architecture of the multimode SU(1,1) interferometer which can be applied to various
integrated platforms. The presented interferometer includes a polarization converter
between two photon sources and utilizes a continuous-wave (CW) pump. Based on
the potassium titanyl phosphate (KTP) platform, we show that this configuration
results in almost perfect destructive interference at the output and supersensitivity
regions below the classical limit. In addition, we discuss the fundamental difference
between single-mode and highly multimode SU(1,1) interferometers in the properties
of phase sensitivity and its limits. Finally, we explore how to improve the phase
sensitivity by filtering the output radiation and using different seeding states
in different modes with various detection strategies.
article_number: '461'
author:
- first_name: Alessandro
full_name: Ferreri, Alessandro
id: '65609'
last_name: Ferreri
- first_name: Matteo
full_name: Santandrea, Matteo
id: '55095'
last_name: Santandrea
orcid: 0000-0001-5718-358X
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Kai Hong
full_name: Luo, Kai Hong
id: '36389'
last_name: Luo
orcid: 0000-0003-1008-4976
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Polina R.
full_name: Sharapova, Polina R.
id: '60286'
last_name: Sharapova
citation:
ama: Ferreri A, Santandrea M, Stefszky M, et al. Spectrally multimode integrated
SU(1,1) interferometer. Quantum. Published online 2021. doi:10.22331/q-2021-05-27-461
apa: Ferreri, A., Santandrea, M., Stefszky, M., Luo, K. H., Herrmann, H., Silberhorn,
C., & Sharapova, P. R. (2021). Spectrally multimode integrated SU(1,1) interferometer.
Quantum, Article 461. https://doi.org/10.22331/q-2021-05-27-461
bibtex: '@article{Ferreri_Santandrea_Stefszky_Luo_Herrmann_Silberhorn_Sharapova_2021,
title={Spectrally multimode integrated SU(1,1) interferometer}, DOI={10.22331/q-2021-05-27-461},
number={461}, journal={Quantum}, author={Ferreri, Alessandro and Santandrea, Matteo
and Stefszky, Michael and Luo, Kai Hong and Herrmann, Harald and Silberhorn, Christine
and Sharapova, Polina R.}, year={2021} }'
chicago: Ferreri, Alessandro, Matteo Santandrea, Michael Stefszky, Kai Hong Luo,
Harald Herrmann, Christine Silberhorn, and Polina R. Sharapova. “Spectrally Multimode
Integrated SU(1,1) Interferometer.” Quantum, 2021. https://doi.org/10.22331/q-2021-05-27-461.
ieee: 'A. Ferreri et al., “Spectrally multimode integrated SU(1,1) interferometer,”
Quantum, Art. no. 461, 2021, doi: 10.22331/q-2021-05-27-461.'
mla: Ferreri, Alessandro, et al. “Spectrally Multimode Integrated SU(1,1) Interferometer.”
Quantum, 461, 2021, doi:10.22331/q-2021-05-27-461.
short: A. Ferreri, M. Santandrea, M. Stefszky, K.H. Luo, H. Herrmann, C. Silberhorn,
P.R. Sharapova, Quantum (2021).
date_created: 2021-10-12T08:46:46Z
date_updated: 2026-01-16T10:22:10Z
department:
- _id: '15'
- _id: '288'
doi: 10.22331/q-2021-05-27-461
language:
- iso: eng
project:
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
publication: Quantum
publication_identifier:
issn:
- 2521-327X
publication_status: published
status: public
title: Spectrally multimode integrated SU(1,1) interferometer
type: journal_article
user_id: '42777'
year: '2021'
...
---
_id: '39027'
abstract:
- lang: eng
text: We experimentally investigate the generation of continuous-wave optical squeezing
from a titanium-indiffused lithium niobate waveguide resonator at low and high
frequencies. The device promises integration with different platform chips for
more complex optical systems.
author:
- first_name: Renato R.
full_name: Domeneguetti, Renato R.
last_name: Domeneguetti
- first_name: Hauke
full_name: Conradi, Hauke
last_name: Conradi
- first_name: Moritz
full_name: Kleinert, Moritz
last_name: Kleinert
- first_name: Christian
full_name: Kießler, Christian
id: '44252'
last_name: Kießler
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Ulrik L.
full_name: Andersen, Ulrik L.
last_name: Andersen
- first_name: Jonas Schou
full_name: Neergaard-Nielsen, Jonas Schou
last_name: Neergaard-Nielsen
- first_name: Tobias
full_name: Gehring, Tobias
last_name: Gehring
citation:
ama: 'Domeneguetti RR, Conradi H, Kleinert M, et al. Nonlinear waveguides for integrated
quantum light source. In: 2021 Conference on Lasers and Electro-Optics Europe
and European Quantum Electronics Conference. Optica Publishing Group; 2021:eb_4_1.'
apa: Domeneguetti, R. R., Conradi, H., Kleinert, M., Kießler, C., Stefszky, M.,
Herrmann, H., Silberhorn, C., Andersen, U. L., Neergaard-Nielsen, J. S., &
Gehring, T. (2021). Nonlinear waveguides for integrated quantum light source.
2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics
Conference, eb_4_1.
bibtex: '@inproceedings{Domeneguetti_Conradi_Kleinert_Kießler_Stefszky_Herrmann_Silberhorn_Andersen_Neergaard-Nielsen_Gehring_2021,
title={Nonlinear waveguides for integrated quantum light source}, booktitle={2021
Conference on Lasers and Electro-Optics Europe and European Quantum Electronics
Conference}, publisher={Optica Publishing Group}, author={Domeneguetti, Renato
R. and Conradi, Hauke and Kleinert, Moritz and Kießler, Christian and Stefszky,
Michael and Herrmann, Harald and Silberhorn, Christine and Andersen, Ulrik L.
and Neergaard-Nielsen, Jonas Schou and Gehring, Tobias}, year={2021}, pages={eb_4_1}
}'
chicago: Domeneguetti, Renato R., Hauke Conradi, Moritz Kleinert, Christian Kießler,
Michael Stefszky, Harald Herrmann, Christine Silberhorn, Ulrik L. Andersen, Jonas
Schou Neergaard-Nielsen, and Tobias Gehring. “Nonlinear Waveguides for Integrated
Quantum Light Source.” In 2021 Conference on Lasers and Electro-Optics Europe
and European Quantum Electronics Conference, eb_4_1. Optica Publishing Group,
2021.
ieee: R. R. Domeneguetti et al., “Nonlinear waveguides for integrated quantum
light source,” in 2021 Conference on Lasers and Electro-Optics Europe and European
Quantum Electronics Conference, 2021, p. eb_4_1.
mla: Domeneguetti, Renato R., et al. “Nonlinear Waveguides for Integrated Quantum
Light Source.” 2021 Conference on Lasers and Electro-Optics Europe and European
Quantum Electronics Conference, Optica Publishing Group, 2021, p. eb_4_1.
short: 'R.R. Domeneguetti, H. Conradi, M. Kleinert, C. Kießler, M. Stefszky, H.
Herrmann, C. Silberhorn, U.L. Andersen, J.S. Neergaard-Nielsen, T. Gehring, in:
2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics
Conference, Optica Publishing Group, 2021, p. eb_4_1.'
date_created: 2023-01-24T08:06:33Z
date_updated: 2026-01-16T10:21:27Z
department:
- _id: '15'
- _id: '288'
keyword:
- Optical systems
- Polymer waveguides
- Quantum key distribution
- Quantum light sources
- Squeezed states
- Waveguides
language:
- iso: eng
page: eb_4_1
publication: 2021 Conference on Lasers and Electro-Optics Europe and European Quantum
Electronics Conference
publisher: Optica Publishing Group
status: public
title: Nonlinear waveguides for integrated quantum light source
type: conference
user_id: '42777'
year: '2021'
...
---
_id: '40374'
abstract:
- lang: eng
text: We present a frequency multimode integrated SU (1,1) interferometer
with a polarization converter and strong signal-idler photon correlations. Phase
sensitivity below the shot noise limit is demonstrated, various filtering and
seeding strategies are discussed.
author:
- first_name: A.
full_name: Ferreri, A.
last_name: Ferreri
- first_name: Matteo
full_name: Santandrea, Matteo
id: '55095'
last_name: Santandrea
orcid: 0000-0001-5718-358X
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Kai Hong
full_name: Luo, Kai Hong
id: '36389'
last_name: Luo
orcid: 0000-0003-1008-4976
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Polina
full_name: Sharapova, Polina
id: '60286'
last_name: Sharapova
citation:
ama: 'Ferreri A, Santandrea M, Stefszky M, et al. Multimode integrated SU(1,1) interferometer.
In: Conference on Lasers and Electro-Optics. Optica Publishing Group; 2021.
doi:10.1364/cleo_qels.2021.ftu1n.6'
apa: Ferreri, A., Santandrea, M., Stefszky, M., Luo, K. H., Herrmann, H., Silberhorn,
C., & Sharapova, P. (2021). Multimode integrated SU(1,1) interferometer. Conference
on Lasers and Electro-Optics. https://doi.org/10.1364/cleo_qels.2021.ftu1n.6
bibtex: '@inproceedings{Ferreri_Santandrea_Stefszky_Luo_Herrmann_Silberhorn_Sharapova_2021,
title={Multimode integrated SU(1,1) interferometer}, DOI={10.1364/cleo_qels.2021.ftu1n.6},
booktitle={Conference on Lasers and Electro-Optics}, publisher={Optica Publishing
Group}, author={Ferreri, A. and Santandrea, Matteo and Stefszky, Michael and Luo,
Kai Hong and Herrmann, Harald and Silberhorn, Christine and Sharapova, Polina},
year={2021} }'
chicago: Ferreri, A., Matteo Santandrea, Michael Stefszky, Kai Hong Luo, Harald
Herrmann, Christine Silberhorn, and Polina Sharapova. “Multimode Integrated SU(1,1)
Interferometer.” In Conference on Lasers and Electro-Optics. Optica Publishing
Group, 2021. https://doi.org/10.1364/cleo_qels.2021.ftu1n.6.
ieee: 'A. Ferreri et al., “Multimode integrated SU(1,1) interferometer,”
2021, doi: 10.1364/cleo_qels.2021.ftu1n.6.'
mla: Ferreri, A., et al. “Multimode Integrated SU(1,1) Interferometer.” Conference
on Lasers and Electro-Optics, Optica Publishing Group, 2021, doi:10.1364/cleo_qels.2021.ftu1n.6.
short: 'A. Ferreri, M. Santandrea, M. Stefszky, K.H. Luo, H. Herrmann, C. Silberhorn,
P. Sharapova, in: Conference on Lasers and Electro-Optics, Optica Publishing Group,
2021.'
date_created: 2023-01-26T13:57:47Z
date_updated: 2025-12-16T11:13:18Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '230'
- _id: '288'
- _id: '429'
- _id: '35'
- _id: '429'
doi: 10.1364/cleo_qels.2021.ftu1n.6
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '56'
name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '72'
name: 'TRR 142 - C2: TRR 142 - Subproject C2'
publication: Conference on Lasers and Electro-Optics
publication_status: published
publisher: Optica Publishing Group
status: public
title: Multimode integrated SU(1,1) interferometer
type: conference
user_id: '16199'
year: '2021'
...
---
_id: '22771'
article_number: '1991'
author:
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Matteo
full_name: Santandrea, Matteo
id: '55095'
last_name: Santandrea
orcid: 0000-0001-5718-358X
- first_name: Felix
full_name: vom Bruch, Felix
id: '71245'
last_name: vom Bruch
- first_name: S.
full_name: Krapick, S.
last_name: Krapick
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: R.
full_name: Ricken, R.
last_name: Ricken
- first_name: V.
full_name: Quiring, V.
last_name: Quiring
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Stefszky M, Santandrea M, vom Bruch F, et al. Waveguide resonator with an integrated
phase modulator for second harmonic generation. Optics Express. Published
online 2020. doi:10.1364/oe.412824
apa: Stefszky, M., Santandrea, M., vom Bruch, F., Krapick, S., Eigner, C., Ricken,
R., Quiring, V., Herrmann, H., & Silberhorn, C. (2020). Waveguide resonator
with an integrated phase modulator for second harmonic generation. Optics Express,
Article 1991. https://doi.org/10.1364/oe.412824
bibtex: '@article{Stefszky_Santandrea_vom Bruch_Krapick_Eigner_Ricken_Quiring_Herrmann_Silberhorn_2020,
title={Waveguide resonator with an integrated phase modulator for second harmonic
generation}, DOI={10.1364/oe.412824},
number={1991}, journal={Optics Express}, author={Stefszky, Michael and Santandrea,
Matteo and vom Bruch, Felix and Krapick, S. and Eigner, Christof and Ricken, R.
and Quiring, V. and Herrmann, Harald and Silberhorn, Christine}, year={2020} }'
chicago: Stefszky, Michael, Matteo Santandrea, Felix vom Bruch, S. Krapick, Christof
Eigner, R. Ricken, V. Quiring, Harald Herrmann, and Christine Silberhorn. “Waveguide
Resonator with an Integrated Phase Modulator for Second Harmonic Generation.”
Optics Express, 2020. https://doi.org/10.1364/oe.412824.
ieee: 'M. Stefszky et al., “Waveguide resonator with an integrated phase
modulator for second harmonic generation,” Optics Express, Art. no. 1991,
2020, doi: 10.1364/oe.412824.'
mla: Stefszky, Michael, et al. “Waveguide Resonator with an Integrated Phase Modulator
for Second Harmonic Generation.” Optics Express, 1991, 2020, doi:10.1364/oe.412824.
short: M. Stefszky, M. Santandrea, F. vom Bruch, S. Krapick, C. Eigner, R. Ricken,
V. Quiring, H. Herrmann, C. Silberhorn, Optics Express (2020).
date_created: 2021-07-21T07:49:22Z
date_updated: 2022-01-06T06:55:40Z
department:
- _id: '15'
- _id: '288'
doi: 10.1364/oe.412824
language:
- iso: eng
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
status: public
title: Waveguide resonator with an integrated phase modulator for second harmonic
generation
type: journal_article
user_id: '13244'
year: '2020'
...
---
_id: '20157'
article_number: '28961'
author:
- first_name: Frederik
full_name: Thiele, Frederik
id: '50819'
last_name: Thiele
orcid: 0000-0003-0663-5587
- first_name: Felix
full_name: vom Bruch, Felix
id: '71245'
last_name: vom Bruch
- first_name: Victor
full_name: Quiring, Victor
last_name: Quiring
- first_name: Raimund
full_name: Ricken, Raimund
last_name: Ricken
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: Thiele F, vom Bruch F, Quiring V, et al. Cryogenic electro-optic polarisation
conversion in titanium in-diffused lithium niobate waveguides. Optics Express.
Published online 2020. doi:10.1364/oe.399818
apa: Thiele, F., vom Bruch, F., Quiring, V., Ricken, R., Herrmann, H., Eigner, C.,
Silberhorn, C., & Bartley, T. (2020). Cryogenic electro-optic polarisation
conversion in titanium in-diffused lithium niobate waveguides. Optics Express,
Article 28961. https://doi.org/10.1364/oe.399818
bibtex: '@article{Thiele_vom Bruch_Quiring_Ricken_Herrmann_Eigner_Silberhorn_Bartley_2020,
title={Cryogenic electro-optic polarisation conversion in titanium in-diffused
lithium niobate waveguides}, DOI={10.1364/oe.399818},
number={28961}, journal={Optics Express}, author={Thiele, Frederik and vom Bruch,
Felix and Quiring, Victor and Ricken, Raimund and Herrmann, Harald and Eigner,
Christof and Silberhorn, Christine and Bartley, Tim}, year={2020} }'
chicago: Thiele, Frederik, Felix vom Bruch, Victor Quiring, Raimund Ricken, Harald
Herrmann, Christof Eigner, Christine Silberhorn, and Tim Bartley. “Cryogenic Electro-Optic
Polarisation Conversion in Titanium in-Diffused Lithium Niobate Waveguides.” Optics
Express, 2020. https://doi.org/10.1364/oe.399818.
ieee: 'F. Thiele et al., “Cryogenic electro-optic polarisation conversion
in titanium in-diffused lithium niobate waveguides,” Optics Express, Art.
no. 28961, 2020, doi: 10.1364/oe.399818.'
mla: Thiele, Frederik, et al. “Cryogenic Electro-Optic Polarisation Conversion in
Titanium in-Diffused Lithium Niobate Waveguides.” Optics Express, 28961,
2020, doi:10.1364/oe.399818.
short: F. Thiele, F. vom Bruch, V. Quiring, R. Ricken, H. Herrmann, C. Eigner, C.
Silberhorn, T. Bartley, Optics Express (2020).
date_created: 2020-10-21T11:03:11Z
date_updated: 2022-10-25T07:40:20Z
department:
- _id: '15'
doi: 10.1364/oe.399818
language:
- iso: eng
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
status: public
title: Cryogenic electro-optic polarisation conversion in titanium in-diffused lithium
niobate waveguides
type: journal_article
user_id: '49683'
year: '2020'
...