---
_id: '63451'
abstract:
- lang: eng
text: Superconducting nanowire single-photon detectors (SNSPDs) can enable
photon-number resolution (PNR) based on accurate measurements of the detector’s
response time to few-photon optical pulses. In this work, we investigate the impact
of the optical pulse shape and duration on the accuracy of this method. We find
that Gaussian temporal pulse shapes yield cleaner arrival-time histograms and,
thus, more accurate PNR, compared to bandpass-filtered pulses of equal bandwidth.
For low system jitter and an optical pulse duration comparable to the other jitter
contributions, photon numbers can be discriminated in our system with a commercial
SNSPD. At 60 ps optical pulse duration, photon-number discrimination is significantly
reduced. Furthermore, we highlight the importance of using the correct arrival-time
histogram model when analyzing photon-number assignment. Using exponentially modified
Gaussian distributions, instead of the commonly used Gaussian distributions, we
can more accurately determine photon-number misidentification probabilities. Finally,
we reconstruct the positive operator-valued measures of the detector, revealing
sharp features that indicate the intrinsic PNR capabilities.
article_number: '016102'
author:
- first_name: Timon
full_name: Schapeler, Timon
id: '55629'
last_name: Schapeler
orcid: 0000-0001-7652-1716
- first_name: Isabell
full_name: Mischke, Isabell
last_name: Mischke
- first_name: Fabian
full_name: Schlue, Fabian
id: '63579'
last_name: Schlue
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- 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: Schapeler T, Mischke I, Schlue F, et al. Practical considerations for assignment
of photon numbers with SNSPDs. APL Quantum. 2026;3(1). doi:10.1063/5.0304127
apa: Schapeler, T., Mischke, I., Schlue, F., Stefszky, M., Brecht, B., Silberhorn,
C., & Bartley, T. (2026). Practical considerations for assignment of photon
numbers with SNSPDs. APL Quantum, 3(1), Article 016102. https://doi.org/10.1063/5.0304127
bibtex: '@article{Schapeler_Mischke_Schlue_Stefszky_Brecht_Silberhorn_Bartley_2026,
title={Practical considerations for assignment of photon numbers with SNSPDs},
volume={3}, DOI={10.1063/5.0304127},
number={1016102}, journal={APL Quantum}, publisher={AIP Publishing}, author={Schapeler,
Timon and Mischke, Isabell and Schlue, Fabian and Stefszky, Michael and Brecht,
Benjamin and Silberhorn, Christine and Bartley, Tim}, year={2026} }'
chicago: Schapeler, Timon, Isabell Mischke, Fabian Schlue, Michael Stefszky, Benjamin
Brecht, Christine Silberhorn, and Tim Bartley. “Practical Considerations for Assignment
of Photon Numbers with SNSPDs.” APL Quantum 3, no. 1 (2026). https://doi.org/10.1063/5.0304127.
ieee: 'T. Schapeler et al., “Practical considerations for assignment of photon
numbers with SNSPDs,” APL Quantum, vol. 3, no. 1, Art. no. 016102, 2026,
doi: 10.1063/5.0304127.'
mla: Schapeler, Timon, et al. “Practical Considerations for Assignment of Photon
Numbers with SNSPDs.” APL Quantum, vol. 3, no. 1, 016102, AIP Publishing,
2026, doi:10.1063/5.0304127.
short: T. Schapeler, I. Mischke, F. Schlue, M. Stefszky, B. Brecht, C. Silberhorn,
T. Bartley, APL Quantum 3 (2026).
date_created: 2026-01-05T10:00:58Z
date_updated: 2026-03-25T08:00:27Z
department:
- _id: '15'
- _id: '623'
- _id: '288'
doi: 10.1063/5.0304127
intvolume: ' 3'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '191'
name: 'PhoQuant: Photonische Quantencomputer - Quantencomputing Testplattform'
- _id: '239'
name: 'ERC-Grant: QuESADILLA: Quantum Engineering Superconducting Array Detectors
in Low-Light Applications'
publication: APL Quantum
publication_identifier:
issn:
- 2835-0103
publication_status: published
publisher: AIP Publishing
status: public
title: Practical considerations for assignment of photon numbers with SNSPDs
type: journal_article
user_id: '27150'
volume: 3
year: '2026'
...
---
_id: '60587'
author:
- first_name: Timon
full_name: Schapeler, Timon
id: '55629'
last_name: Schapeler
orcid: 0000-0001-7652-1716
- first_name: Fabian
full_name: Schlue, Fabian
id: '63579'
last_name: Schlue
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- 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: 'Schapeler T, Schlue F, Stefszky M, Brecht B, Silberhorn C, Bartley T. Optimizing
photon-number resolution with superconducting nanowire multi-photon detectors.
In: Itzler MA, McIntosh KA, Bienfang JC, eds. Advanced Photon Counting Techniques
XIX. SPIE; 2025. doi:10.1117/12.3054905'
apa: Schapeler, T., Schlue, F., Stefszky, M., Brecht, B., Silberhorn, C., &
Bartley, T. (2025). Optimizing photon-number resolution with superconducting nanowire
multi-photon detectors. In M. A. Itzler, K. A. McIntosh, & J. C. Bienfang
(Eds.), Advanced Photon Counting Techniques XIX. SPIE. https://doi.org/10.1117/12.3054905
bibtex: '@inproceedings{Schapeler_Schlue_Stefszky_Brecht_Silberhorn_Bartley_2025,
title={Optimizing photon-number resolution with superconducting nanowire multi-photon
detectors}, DOI={10.1117/12.3054905},
booktitle={Advanced Photon Counting Techniques XIX}, publisher={SPIE}, author={Schapeler,
Timon and Schlue, Fabian and Stefszky, Michael and Brecht, Benjamin and Silberhorn,
Christine and Bartley, Tim}, editor={Itzler, Mark A. and McIntosh, K. Alex and
Bienfang, Joshua C.}, year={2025} }'
chicago: Schapeler, Timon, Fabian Schlue, Michael Stefszky, Benjamin Brecht, Christine
Silberhorn, and Tim Bartley. “Optimizing Photon-Number Resolution with Superconducting
Nanowire Multi-Photon Detectors.” In Advanced Photon Counting Techniques XIX,
edited by Mark A. Itzler, K. Alex McIntosh, and Joshua C. Bienfang. SPIE, 2025.
https://doi.org/10.1117/12.3054905.
ieee: 'T. Schapeler, F. Schlue, M. Stefszky, B. Brecht, C. Silberhorn, and T. Bartley,
“Optimizing photon-number resolution with superconducting nanowire multi-photon
detectors,” in Advanced Photon Counting Techniques XIX, 2025, doi: 10.1117/12.3054905.'
mla: Schapeler, Timon, et al. “Optimizing Photon-Number Resolution with Superconducting
Nanowire Multi-Photon Detectors.” Advanced Photon Counting Techniques XIX,
edited by Mark A. Itzler et al., SPIE, 2025, doi:10.1117/12.3054905.
short: 'T. Schapeler, F. Schlue, M. Stefszky, B. Brecht, C. Silberhorn, T. Bartley,
in: M.A. Itzler, K.A. McIntosh, J.C. Bienfang (Eds.), Advanced Photon Counting
Techniques XIX, SPIE, 2025.'
date_created: 2025-07-11T09:18:09Z
date_updated: 2025-07-11T09:22:11Z
department:
- _id: '15'
- _id: '623'
doi: 10.1117/12.3054905
editor:
- first_name: Mark A.
full_name: Itzler, Mark A.
last_name: Itzler
- first_name: K. Alex
full_name: McIntosh, K. Alex
last_name: McIntosh
- first_name: Joshua C.
full_name: Bienfang, Joshua C.
last_name: Bienfang
language:
- iso: eng
project:
- _id: '239'
call_identifier: ERC
grant_number: '101042399'
name: 'QuESADILLA: ERC-Grant: QuESADILLA: Quantum Engineering Superconducting Array
Detectors in Low-Light Applications'
- _id: '191'
grant_number: 13N16103
name: 'PhoQuant--QCTest: PhoQuant: Photonische Quantencomputer - Quantencomputing
Testplattform'
publication: Advanced Photon Counting Techniques XIX
publication_status: published
publisher: SPIE
status: public
title: Optimizing photon-number resolution with superconducting nanowire multi-photon
detectors
type: conference
user_id: '55629'
year: '2025'
...
---
_id: '61110'
abstract:
- lang: eng
text: 'By analyzing the physics of multi-photon absorption in superconducting
nanowire single-photon detectors (SNSPDs), we identify physical components of
jitter. From this, we formulate a quantitative physical model of the multi-photon
detector response that combines the local detection mechanism and local fluctuations
(hotspot formation and intrinsic jitter) with the thermoelectric dynamics of resistive
domains. Our model provides an excellent description of the arrival-time histogram
of a commercial SNSPD across several orders of magnitude, both in arrival-time
probability and across mean photon number. This is achieved with just three fitting
parameters: the scaling of the mean arrival time of voltage response pulses, as
well as the Gaussian and exponential jitter components. Our findings have important
implications for photon-number-resolving detector design, as well as applications
requiring low jitter, such as light detection and ranging (LIDAR).'
article_number: '086113'
article_type: original
author:
- first_name: Mariia
full_name: Sidorova, Mariia
last_name: Sidorova
- first_name: Timon
full_name: Schapeler, Timon
id: '55629'
last_name: Schapeler
orcid: 0000-0001-7652-1716
- first_name: Alexej D.
full_name: Semenov, Alexej D.
last_name: Semenov
- first_name: Fabian
full_name: Schlue, Fabian
id: '63579'
last_name: Schlue
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- 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: Sidorova M, Schapeler T, Semenov AD, et al. Jitter in photon-number-resolved
detection by superconducting nanowires. APL Photonics. 2025;10(8). doi:10.1063/5.0273752
apa: Sidorova, M., Schapeler, T., Semenov, A. D., Schlue, F., Stefszky, M., Brecht,
B., Silberhorn, C., & Bartley, T. (2025). Jitter in photon-number-resolved
detection by superconducting nanowires. APL Photonics, 10(8), Article
086113. https://doi.org/10.1063/5.0273752
bibtex: '@article{Sidorova_Schapeler_Semenov_Schlue_Stefszky_Brecht_Silberhorn_Bartley_2025,
title={Jitter in photon-number-resolved detection by superconducting nanowires},
volume={10}, DOI={10.1063/5.0273752},
number={8086113}, journal={APL Photonics}, publisher={AIP Publishing}, author={Sidorova,
Mariia and Schapeler, Timon and Semenov, Alexej D. and Schlue, Fabian and Stefszky,
Michael and Brecht, Benjamin and Silberhorn, Christine and Bartley, Tim}, year={2025}
}'
chicago: Sidorova, Mariia, Timon Schapeler, Alexej D. Semenov, Fabian Schlue, Michael
Stefszky, Benjamin Brecht, Christine Silberhorn, and Tim Bartley. “Jitter in Photon-Number-Resolved
Detection by Superconducting Nanowires.” APL Photonics 10, no. 8 (2025).
https://doi.org/10.1063/5.0273752.
ieee: 'M. Sidorova et al., “Jitter in photon-number-resolved detection by
superconducting nanowires,” APL Photonics, vol. 10, no. 8, Art. no. 086113,
2025, doi: 10.1063/5.0273752.'
mla: Sidorova, Mariia, et al. “Jitter in Photon-Number-Resolved Detection by Superconducting
Nanowires.” APL Photonics, vol. 10, no. 8, 086113, AIP Publishing, 2025,
doi:10.1063/5.0273752.
short: M. Sidorova, T. Schapeler, A.D. Semenov, F. Schlue, M. Stefszky, B. Brecht,
C. Silberhorn, T. Bartley, APL Photonics 10 (2025).
date_created: 2025-09-01T11:12:19Z
date_updated: 2025-09-02T10:47:08Z
department:
- _id: '623'
- _id: '15'
doi: 10.1063/5.0273752
external_id:
arxiv:
- arXiv:2503.17146
intvolume: ' 10'
issue: '8'
keyword:
- Jitter
- PNR
- SNSPD
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '191'
name: 'PhoQuant: Photonische Quantencomputer - Quantencomputing Testplattform'
- _id: '239'
name: 'ERC-Grant: QuESADILLA: Quantum Engineering Superconducting Array Detectors
in Low-Light Applications'
publication: APL Photonics
publication_identifier:
issn:
- 2378-0967
publication_status: published
publisher: AIP Publishing
status: public
title: Jitter in photon-number-resolved detection by superconducting nanowires
type: journal_article
user_id: '55629'
volume: 10
year: '2025'
...
---
_id: '62911'
abstract:
- lang: eng
text: In this paper, we theoretically study the spectral and temporal properties
of pulsed spontaneous parametric down-conversion (SPDC) generated in lossy waveguides.
Our theoretical approach is based on the formalism of Gaussian states and the
Langevin equation, which is elaborated for weak parametric down-conversion and
photon-number-unresolved click detection. Using the example of frequency-degenerate
type-II SPDC generated under the pump-idler group-velocity-matching condition,
we show how the joint-spectral intensity, mode structure, normalized second-order
correlation function, and Hong-Ou-Mandel interference pattern depend on internal
losses of the SPDC process. We found that the joint-spectral intensity is almost
insensitive to internal losses, while the second-order correlation function shows
a strong dependence on them, being different for the signal and idler beams in
the presence of internal losses. Based on the sensitivity of the normalized second-order
correlation function, we show how its measurement can be used to experimentally
determine internal losses.
article_number: '033122'
author:
- first_name: Denis A.
full_name: Kopylov, Denis A.
last_name: Kopylov
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- 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: 'Kopylov DA, Stefszky M, Meier T, Silberhorn C, Sharapova PR. Spectral and
temporal properties of type-II parametric down-conversion: The impact of losses
during state generation. Physical Review Research. 2025;7(3). doi:10.1103/zp72-7qwl'
apa: 'Kopylov, D. A., Stefszky, M., Meier, T., Silberhorn, C., & Sharapova,
P. R. (2025). Spectral and temporal properties of type-II parametric down-conversion:
The impact of losses during state generation. Physical Review Research,
7(3), Article 033122. https://doi.org/10.1103/zp72-7qwl'
bibtex: '@article{Kopylov_Stefszky_Meier_Silberhorn_Sharapova_2025, title={Spectral
and temporal properties of type-II parametric down-conversion: The impact of losses
during state generation}, volume={7}, DOI={10.1103/zp72-7qwl},
number={3033122}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Kopylov, Denis A. and Stefszky, Michael and Meier, Torsten
and Silberhorn, Christine and Sharapova, Polina R.}, year={2025} }'
chicago: 'Kopylov, Denis A., Michael Stefszky, Torsten Meier, Christine Silberhorn,
and Polina R. Sharapova. “Spectral and Temporal Properties of Type-II Parametric
down-Conversion: The Impact of Losses during State Generation.” Physical Review
Research 7, no. 3 (2025). https://doi.org/10.1103/zp72-7qwl.'
ieee: 'D. A. Kopylov, M. Stefszky, T. Meier, C. Silberhorn, and P. R. Sharapova,
“Spectral and temporal properties of type-II parametric down-conversion: The impact
of losses during state generation,” Physical Review Research, vol. 7, no.
3, Art. no. 033122, 2025, doi: 10.1103/zp72-7qwl.'
mla: 'Kopylov, Denis A., et al. “Spectral and Temporal Properties of Type-II Parametric
down-Conversion: The Impact of Losses during State Generation.” Physical Review
Research, vol. 7, no. 3, 033122, American Physical Society (APS), 2025, doi:10.1103/zp72-7qwl.'
short: D.A. Kopylov, M. Stefszky, T. Meier, C. Silberhorn, P.R. Sharapova, Physical
Review Research 7 (2025).
date_created: 2025-12-05T09:33:36Z
date_updated: 2025-12-05T09:55:22Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '293'
- _id: '288'
- _id: '230'
- _id: '623'
- _id: '429'
- _id: '35'
doi: 10.1103/zp72-7qwl
intvolume: ' 7'
issue: '3'
language:
- iso: eng
project:
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '56'
name: TRR 142 - Project Area C
- _id: '174'
name: 'TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen
Systemen: Eine theoretische Analyse'
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Spectral and temporal properties of type-II parametric down-conversion: The
impact of losses during state generation'
type: journal_article
user_id: '16199'
volume: 7
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: '54544'
abstract:
- lang: eng
text: The biphoton correlation time, a measure for the conditional uncertainty in
the temporal arrival of two photons from a photon pair source, is a key performance
identifier for many quantum spectroscopy applications, with shorter correlation
times typically yielding better performance. Furthermore, it provides fundamental
insight into the effects of dispersion on the biphoton state. Here, we show that
a characteristic dependence of the width of the temporal interferogram can be
exploited to obtain insights into the amount of second-order dispersion inside
the interferometer and to retrieve actual and Fourier-limited ultrashort biphoton
correlation times of around 100 fs. In the presented scheme, we simultaneously
measure spectral and temporal interferograms at the output of an SU(1,1) interferometer
based on an integrated broadband parametric down conversion source in a Ti:LiNbO3
waveguide.
article_number: '020350'
author:
- first_name: Franz
full_name: Roeder, Franz
id: '88149'
last_name: Roeder
- first_name: René
full_name: Pollmann, René
id: '78890'
last_name: Pollmann
- 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: Kai Hong
full_name: Luo, Kai Hong
id: '36389'
last_name: Luo
orcid: 0000-0003-1008-4976
- first_name: V.
full_name: Quiring, V.
last_name: Quiring
- first_name: Raimund
full_name: Ricken, Raimund
last_name: Ricken
- 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: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Roeder F, Pollmann R, Stefszky M, et al. Measurement of Ultrashort Biphoton
Correlation Times with an Integrated Two-Color Broadband SU(1,1)-Interferometer.
PRX Quantum. 2024;5(2). doi:10.1103/prxquantum.5.020350
apa: Roeder, F., Pollmann, R., Stefszky, M., Santandrea, M., Luo, K. H., Quiring,
V., Ricken, R., Eigner, C., Brecht, B., & Silberhorn, C. (2024). Measurement
of Ultrashort Biphoton Correlation Times with an Integrated Two-Color Broadband
SU(1,1)-Interferometer. PRX Quantum, 5(2), Article 020350. https://doi.org/10.1103/prxquantum.5.020350
bibtex: '@article{Roeder_Pollmann_Stefszky_Santandrea_Luo_Quiring_Ricken_Eigner_Brecht_Silberhorn_2024,
title={Measurement of Ultrashort Biphoton Correlation Times with an Integrated
Two-Color Broadband SU(1,1)-Interferometer}, volume={5}, DOI={10.1103/prxquantum.5.020350},
number={2020350}, journal={PRX Quantum}, publisher={American Physical Society
(APS)}, author={Roeder, Franz and Pollmann, René and Stefszky, Michael and Santandrea,
Matteo and Luo, Kai Hong and Quiring, V. and Ricken, Raimund and Eigner, Christof
and Brecht, Benjamin and Silberhorn, Christine}, year={2024} }'
chicago: Roeder, Franz, René Pollmann, Michael Stefszky, Matteo Santandrea, Kai
Hong Luo, V. Quiring, Raimund Ricken, Christof Eigner, Benjamin Brecht, and Christine
Silberhorn. “Measurement of Ultrashort Biphoton Correlation Times with an Integrated
Two-Color Broadband SU(1,1)-Interferometer.” PRX Quantum 5, no. 2 (2024).
https://doi.org/10.1103/prxquantum.5.020350.
ieee: 'F. Roeder et al., “Measurement of Ultrashort Biphoton Correlation
Times with an Integrated Two-Color Broadband SU(1,1)-Interferometer,” PRX Quantum,
vol. 5, no. 2, Art. no. 020350, 2024, doi: 10.1103/prxquantum.5.020350.'
mla: Roeder, Franz, et al. “Measurement of Ultrashort Biphoton Correlation Times
with an Integrated Two-Color Broadband SU(1,1)-Interferometer.” PRX Quantum,
vol. 5, no. 2, 020350, American Physical Society (APS), 2024, doi:10.1103/prxquantum.5.020350.
short: F. Roeder, R. Pollmann, M. Stefszky, M. Santandrea, K.H. Luo, V. Quiring,
R. Ricken, C. Eigner, B. Brecht, C. Silberhorn, PRX Quantum 5 (2024).
date_created: 2024-06-01T12:48:51Z
date_updated: 2024-06-01T13:00:53Z
department:
- _id: '288'
- _id: '623'
doi: 10.1103/prxquantum.5.020350
intvolume: ' 5'
issue: '2'
language:
- iso: eng
project:
- _id: '207'
grant_number: 13N15065
name: 'MiLiQuant: Miniaturisierte Lichtquellen für den industriellen Einsatz in
Quantensensoren und Quanten-Imaging-Systemen (MiLiQuant) - Teilvorhaben: Technologie
und Theorie für MIR Quanten-Imaging Systeme'
- _id: '571'
grant_number: '101070700'
name: 'MIRAQLS: MIRAQLS: Mid-infrared Quantum Technology for Sensing'
- _id: '190'
name: 'E2TPA: Exploiting Entangled Two-Photon Absorption'
publication: PRX Quantum
publication_identifier:
issn:
- 2691-3399
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Measurement of Ultrashort Biphoton Correlation Times with an Integrated Two-Color
Broadband SU(1,1)-Interferometer
type: journal_article
user_id: '88149'
volume: 5
year: '2024'
...
---
_id: '55174'
abstract:
- lang: eng
text: "We apply principal component analysis (PCA) to a set of electrical
output signals from a commercially available superconducting nanowire single-photon
detector (SNSPD) to investigate their photon-number-resolving capability. We find
that the rising edge as well as the amplitude of the electrical signal have the
most dependence on photon number. Accurately measuring the rising edge while simultaneously
measuring the voltage of the pulse amplitude maximizes the photon-number resolution
of SNSPDs. Using an optimal basis of principal components, we show unambiguous
discrimination between one- and two-photon events, as well as partial resolution
up to five photons. This expands the use case of SNSPDs to photon-counting experiments,
without the need of detector multiplexing architectures.\r\n \r\n
\ \r\n \r\n \r\n
\ Published by the American Physical Society\r\n
\ 2024\r\n \r\n
\ \r\n "
article_number: '014024'
author:
- first_name: Timon
full_name: Schapeler, Timon
id: '55629'
last_name: Schapeler
orcid: 0000-0001-7652-1716
- first_name: Niklas
full_name: Lamberty, Niklas
last_name: Lamberty
- first_name: Thomas
full_name: Hummel, Thomas
id: '83846'
last_name: Hummel
orcid: 0000-0001-8627-2119
- first_name: Fabian
full_name: Schlue, Fabian
id: '63579'
last_name: Schlue
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- 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: Schapeler T, Lamberty N, Hummel T, et al. Electrical trace analysis of superconducting
nanowire photon-number-resolving detectors. Physical Review Applied. 2024;22(1).
doi:10.1103/physrevapplied.22.014024
apa: Schapeler, T., Lamberty, N., Hummel, T., Schlue, F., Stefszky, M., Brecht,
B., Silberhorn, C., & Bartley, T. (2024). Electrical trace analysis of superconducting
nanowire photon-number-resolving detectors. Physical Review Applied, 22(1),
Article 014024. https://doi.org/10.1103/physrevapplied.22.014024
bibtex: '@article{Schapeler_Lamberty_Hummel_Schlue_Stefszky_Brecht_Silberhorn_Bartley_2024,
title={Electrical trace analysis of superconducting nanowire photon-number-resolving
detectors}, volume={22}, DOI={10.1103/physrevapplied.22.014024},
number={1014024}, journal={Physical Review Applied}, publisher={American Physical
Society (APS)}, author={Schapeler, Timon and Lamberty, Niklas and Hummel, Thomas
and Schlue, Fabian and Stefszky, Michael and Brecht, Benjamin and Silberhorn,
Christine and Bartley, Tim}, year={2024} }'
chicago: Schapeler, Timon, Niklas Lamberty, Thomas Hummel, Fabian Schlue, Michael
Stefszky, Benjamin Brecht, Christine Silberhorn, and Tim Bartley. “Electrical
Trace Analysis of Superconducting Nanowire Photon-Number-Resolving Detectors.”
Physical Review Applied 22, no. 1 (2024). https://doi.org/10.1103/physrevapplied.22.014024.
ieee: 'T. Schapeler et al., “Electrical trace analysis of superconducting
nanowire photon-number-resolving detectors,” Physical Review Applied, vol.
22, no. 1, Art. no. 014024, 2024, doi: 10.1103/physrevapplied.22.014024.'
mla: Schapeler, Timon, et al. “Electrical Trace Analysis of Superconducting Nanowire
Photon-Number-Resolving Detectors.” Physical Review Applied, vol. 22, no.
1, 014024, American Physical Society (APS), 2024, doi:10.1103/physrevapplied.22.014024.
short: T. Schapeler, N. Lamberty, T. Hummel, F. Schlue, M. Stefszky, B. Brecht,
C. Silberhorn, T. Bartley, Physical Review Applied 22 (2024).
date_created: 2024-07-11T07:23:08Z
date_updated: 2024-07-11T09:36:00Z
department:
- _id: '15'
- _id: '623'
doi: 10.1103/physrevapplied.22.014024
intvolume: ' 22'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
project:
- _id: '239'
call_identifier: ERC
grant_number: '101042399'
name: 'QuESADILLA: ERC-Grant: QuESADILLA: Quantum Engineering Superconducting Array
Detectors in Low-Light Applications'
- _id: '191'
grant_number: 13N16103
name: 'PhoQuant--QCTest: PhoQuant: Photonische Quantencomputer - Quantencomputing
Testplattform'
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Electrical trace analysis of superconducting nanowire photon-number-resolving
detectors
type: journal_article
user_id: '55629'
volume: 22
year: '2024'
...
---
_id: '57743'
article_number: '023717'
author:
- first_name: Suchitra
full_name: Krishnaswamy, Suchitra
id: '78347'
last_name: Krishnaswamy
- first_name: Fabian
full_name: Schlue, Fabian
id: '63579'
last_name: Schlue
- first_name: L.
full_name: Ares, L.
last_name: Ares
- first_name: V.
full_name: Dyachuk, V.
last_name: Dyachuk
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Jan
full_name: Sperling, Jan
id: '75127'
last_name: Sperling
orcid: 0000-0002-5844-3205
citation:
ama: Krishnaswamy S, Schlue F, Ares L, et al. Experimental retrieval of photon statistics
from click detection. Physical Review A. 2024;110(2). doi:10.1103/physreva.110.023717
apa: Krishnaswamy, S., Schlue, F., Ares, L., Dyachuk, V., Stefszky, M., Brecht,
B., Silberhorn, C., & Sperling, J. (2024). Experimental retrieval of photon
statistics from click detection. Physical Review A, 110(2), Article
023717. https://doi.org/10.1103/physreva.110.023717
bibtex: '@article{Krishnaswamy_Schlue_Ares_Dyachuk_Stefszky_Brecht_Silberhorn_Sperling_2024,
title={Experimental retrieval of photon statistics from click detection}, volume={110},
DOI={10.1103/physreva.110.023717},
number={2023717}, journal={Physical Review A}, publisher={American Physical Society
(APS)}, author={Krishnaswamy, Suchitra and Schlue, Fabian and Ares, L. and Dyachuk,
V. and Stefszky, Michael and Brecht, Benjamin and Silberhorn, Christine and Sperling,
Jan}, year={2024} }'
chicago: Krishnaswamy, Suchitra, Fabian Schlue, L. Ares, V. Dyachuk, Michael Stefszky,
Benjamin Brecht, Christine Silberhorn, and Jan Sperling. “Experimental Retrieval
of Photon Statistics from Click Detection.” Physical Review A 110, no.
2 (2024). https://doi.org/10.1103/physreva.110.023717.
ieee: 'S. Krishnaswamy et al., “Experimental retrieval of photon statistics
from click detection,” Physical Review A, vol. 110, no. 2, Art. no. 023717,
2024, doi: 10.1103/physreva.110.023717.'
mla: Krishnaswamy, Suchitra, et al. “Experimental Retrieval of Photon Statistics
from Click Detection.” Physical Review A, vol. 110, no. 2, 023717, American
Physical Society (APS), 2024, doi:10.1103/physreva.110.023717.
short: S. Krishnaswamy, F. Schlue, L. Ares, V. Dyachuk, M. Stefszky, B. Brecht,
C. Silberhorn, J. Sperling, Physical Review A 110 (2024).
date_created: 2024-12-11T15:33:08Z
date_updated: 2024-12-11T15:35:07Z
department:
- _id: '623'
- _id: '15'
- _id: '170'
- _id: '706'
- _id: '429'
- _id: '623'
doi: 10.1103/physreva.110.023717
intvolume: ' 110'
issue: '2'
language:
- iso: eng
publication: Physical Review A
publication_identifier:
issn:
- 2469-9926
- 2469-9934
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Experimental retrieval of photon statistics from click detection
type: journal_article
user_id: '75127'
volume: 110
year: '2024'
...
---
_id: '63218'
abstract:
- lang: eng
text: "Linear optical quantum networks, consisting of a quantum input state
and a multiport interferometer, are an important building block for many quantum
technological concepts, e.g., Gaussian boson sampling. Here, we propose the implementation
of such networks based on frequency conversion by utilizing a so-called multioutput
quantum pulse gate (MQPG). This approach allows the resource-efficient and therefore
scalable implementation of frequency-bin-based, fully programmable interferometers
in a single spatial and polarization mode. Quantum input states for this network
can be provided by utilizing the strong frequency entanglement of a type-0 parametric
down-conversion (PDC) source. Here, we develop a theoretical framework to describe
linear networks based on an MQPG and PDC and utilize it to investigate the limits
and scalabilty of our approach.\r\n \r\n \r\n
\ \r\n \r\n
\ Published by the American Physical Society\r\n
\ 2024\r\n \r\n
\ \r\n "
article_number: '040329'
author:
- first_name: Patrick Fabian
full_name: Folge, Patrick Fabian
id: '88605'
last_name: Folge
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Folge PF, Stefszky M, Brecht B, Silberhorn C. A Framework for Fully Programmable
Frequency-Encoded Quantum Networks Harnessing Multioutput Quantum Pulse Gates.
PRX Quantum. 2024;5(4). doi:10.1103/prxquantum.5.040329
apa: Folge, P. F., Stefszky, M., Brecht, B., & Silberhorn, C. (2024). A Framework
for Fully Programmable Frequency-Encoded Quantum Networks Harnessing Multioutput
Quantum Pulse Gates. PRX Quantum, 5(4), Article 040329. https://doi.org/10.1103/prxquantum.5.040329
bibtex: '@article{Folge_Stefszky_Brecht_Silberhorn_2024, title={A Framework for
Fully Programmable Frequency-Encoded Quantum Networks Harnessing Multioutput Quantum
Pulse Gates}, volume={5}, DOI={10.1103/prxquantum.5.040329},
number={4040329}, journal={PRX Quantum}, publisher={American Physical Society
(APS)}, author={Folge, Patrick Fabian and Stefszky, Michael and Brecht, Benjamin
and Silberhorn, Christine}, year={2024} }'
chicago: Folge, Patrick Fabian, Michael Stefszky, Benjamin Brecht, and Christine
Silberhorn. “A Framework for Fully Programmable Frequency-Encoded Quantum Networks
Harnessing Multioutput Quantum Pulse Gates.” PRX Quantum 5, no. 4 (2024).
https://doi.org/10.1103/prxquantum.5.040329.
ieee: 'P. F. Folge, M. Stefszky, B. Brecht, and C. Silberhorn, “A Framework for
Fully Programmable Frequency-Encoded Quantum Networks Harnessing Multioutput Quantum
Pulse Gates,” PRX Quantum, vol. 5, no. 4, Art. no. 040329, 2024, doi: 10.1103/prxquantum.5.040329.'
mla: Folge, Patrick Fabian, et al. “A Framework for Fully Programmable Frequency-Encoded
Quantum Networks Harnessing Multioutput Quantum Pulse Gates.” PRX Quantum,
vol. 5, no. 4, 040329, American Physical Society (APS), 2024, doi:10.1103/prxquantum.5.040329.
short: P.F. Folge, M. Stefszky, B. Brecht, C. Silberhorn, PRX Quantum 5 (2024).
date_created: 2025-12-18T16:10:37Z
date_updated: 2025-12-18T16:10:55Z
department:
- _id: '15'
- _id: '623'
doi: 10.1103/prxquantum.5.040329
intvolume: ' 5'
issue: '4'
language:
- iso: eng
publication: PRX Quantum
publication_identifier:
issn:
- 2691-3399
publication_status: published
publisher: American Physical Society (APS)
status: public
title: A Framework for Fully Programmable Frequency-Encoded Quantum Networks Harnessing
Multioutput Quantum Pulse Gates
type: journal_article
user_id: '27150'
volume: 5
year: '2024'
...
---
_id: '57862'
abstract:
- lang: eng
text: The latest applications in ultrafast quantum metrology require bright, broadband
bi-photon sources with one of the photons in the mid-infrared and the other in
the visible to near infrared. However, existing sources based on bulk crystals
are limited in brightness due to the short interaction length and only allow for
limited dispersion engineering. Here, we present an integrated PDC source based
on a Ti:LiNbO3 waveguide that generates broadband bi-photons with central wavelengths
at 860 nm and 2800 nm. Their spectral bandwidth exceeds 25 THz and is achieved
by simultaneous matching of the group velocities (GVs) and cancellation of GV
dispersion for the signal and idler field. We provide an intuitive understanding
of the process by studying our source’s behavior at different temperatures and
pump wavelengths, which agrees well with simulations.
article_number: '123025'
article_type: original
author:
- first_name: Franz
full_name: Roeder, Franz
id: '88149'
last_name: Roeder
- first_name: Abira
full_name: Gnanavel, Abira
last_name: Gnanavel
- first_name: René
full_name: Pollmann, René
id: '78890'
last_name: Pollmann
- first_name: Olga
full_name: Brecht, Olga
last_name: Brecht
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Laura
full_name: Padberg, Laura
id: '40300'
last_name: Padberg
- 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: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
citation:
ama: Roeder F, Gnanavel A, Pollmann R, et al. Ultra-broadband non-degenerate guided-wave
bi-photon source in the near and mid-infrared. New Journal of Physics.
2024;26(12). doi:10.1088/1367-2630/ad9f98
apa: Roeder, F., Gnanavel, A., Pollmann, R., Brecht, O., Stefszky, M., Padberg,
L., Eigner, C., Silberhorn, C., & Brecht, B. (2024). Ultra-broadband non-degenerate
guided-wave bi-photon source in the near and mid-infrared. New Journal of Physics,
26(12), Article 123025. https://doi.org/10.1088/1367-2630/ad9f98
bibtex: '@article{Roeder_Gnanavel_Pollmann_Brecht_Stefszky_Padberg_Eigner_Silberhorn_Brecht_2024,
title={Ultra-broadband non-degenerate guided-wave bi-photon source in the near
and mid-infrared}, volume={26}, DOI={10.1088/1367-2630/ad9f98},
number={12123025}, journal={New Journal of Physics}, publisher={IOP Publishing},
author={Roeder, Franz and Gnanavel, Abira and Pollmann, René and Brecht, Olga
and Stefszky, Michael and Padberg, Laura and Eigner, Christof and Silberhorn,
Christine and Brecht, Benjamin}, year={2024} }'
chicago: Roeder, Franz, Abira Gnanavel, René Pollmann, Olga Brecht, Michael Stefszky,
Laura Padberg, Christof Eigner, Christine Silberhorn, and Benjamin Brecht. “Ultra-Broadband
Non-Degenerate Guided-Wave Bi-Photon Source in the near and Mid-Infrared.” New
Journal of Physics 26, no. 12 (2024). https://doi.org/10.1088/1367-2630/ad9f98.
ieee: 'F. Roeder et al., “Ultra-broadband non-degenerate guided-wave bi-photon
source in the near and mid-infrared,” New Journal of Physics, vol. 26,
no. 12, Art. no. 123025, 2024, doi: 10.1088/1367-2630/ad9f98.'
mla: Roeder, Franz, et al. “Ultra-Broadband Non-Degenerate Guided-Wave Bi-Photon
Source in the near and Mid-Infrared.” New Journal of Physics, vol. 26,
no. 12, 123025, IOP Publishing, 2024, doi:10.1088/1367-2630/ad9f98.
short: F. Roeder, A. Gnanavel, R. Pollmann, O. Brecht, M. Stefszky, L. Padberg,
C. Eigner, C. Silberhorn, B. Brecht, New Journal of Physics 26 (2024).
date_created: 2024-12-27T19:01:14Z
date_updated: 2025-12-19T11:36:36Z
department:
- _id: '288'
- _id: '623'
- _id: '15'
doi: 10.1088/1367-2630/ad9f98
intvolume: ' 26'
issue: '12'
language:
- iso: eng
project:
- _id: '571'
name: 'MIRAQLS: MIRAQLS: Mid-infrared Quantum Technology for Sensing'
- _id: '190'
name: 'E2TPA: Exploiting Entangled Two-Photon Absorption'
publication: New Journal of Physics
publication_identifier:
issn:
- 1367-2630
publication_status: published
publisher: IOP Publishing
status: public
title: Ultra-broadband non-degenerate guided-wave bi-photon source in the near and
mid-infrared
type: journal_article
user_id: '78890'
volume: 26
year: '2024'
...
---
_id: '45485'
author:
- first_name: Stephan
full_name: Kruse, Stephan
id: '38254'
last_name: Kruse
- first_name: Laura
full_name: Serino, Laura
id: '88242'
last_name: Serino
- first_name: Patrick Fabian
full_name: Folge, Patrick Fabian
id: '88605'
last_name: Folge
- first_name: Dana
full_name: Echeverria Oviedo, Dana
last_name: Echeverria Oviedo
- first_name: Abhinandan
full_name: Bhattacharjee, Abhinandan
last_name: Bhattacharjee
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Kruse S, Serino L, Folge PF, et al. A Pulsed Lidar System With Ultimate Quantum
Range Accuracy. IEEE Photonics Technology Letters. 2023;35(14):769-772.
doi:10.1109/lpt.2023.3277515
apa: Kruse, S., Serino, L., Folge, P. F., Echeverria Oviedo, D., Bhattacharjee,
A., Stefszky, M., Scheytt, J. C., Brecht, B., & Silberhorn, C. (2023). A Pulsed
Lidar System With Ultimate Quantum Range Accuracy. IEEE Photonics Technology
Letters, 35(14), 769–772. https://doi.org/10.1109/lpt.2023.3277515
bibtex: '@article{Kruse_Serino_Folge_Echeverria Oviedo_Bhattacharjee_Stefszky_Scheytt_Brecht_Silberhorn_2023,
title={A Pulsed Lidar System With Ultimate Quantum Range Accuracy}, volume={35},
DOI={10.1109/lpt.2023.3277515},
number={14}, journal={IEEE Photonics Technology Letters}, publisher={Institute
of Electrical and Electronics Engineers (IEEE)}, author={Kruse, Stephan and Serino,
Laura and Folge, Patrick Fabian and Echeverria Oviedo, Dana and Bhattacharjee,
Abhinandan and Stefszky, Michael and Scheytt, J. Christoph and Brecht, Benjamin
and Silberhorn, Christine}, year={2023}, pages={769–772} }'
chicago: 'Kruse, Stephan, Laura Serino, Patrick Fabian Folge, Dana Echeverria Oviedo,
Abhinandan Bhattacharjee, Michael Stefszky, J. Christoph Scheytt, Benjamin Brecht,
and Christine Silberhorn. “A Pulsed Lidar System With Ultimate Quantum Range Accuracy.”
IEEE Photonics Technology Letters 35, no. 14 (2023): 769–72. https://doi.org/10.1109/lpt.2023.3277515.'
ieee: 'S. Kruse et al., “A Pulsed Lidar System With Ultimate Quantum Range
Accuracy,” IEEE Photonics Technology Letters, vol. 35, no. 14, pp. 769–772,
2023, doi: 10.1109/lpt.2023.3277515.'
mla: Kruse, Stephan, et al. “A Pulsed Lidar System With Ultimate Quantum Range Accuracy.”
IEEE Photonics Technology Letters, vol. 35, no. 14, Institute of Electrical
and Electronics Engineers (IEEE), 2023, pp. 769–72, doi:10.1109/lpt.2023.3277515.
short: S. Kruse, L. Serino, P.F. Folge, D. Echeverria Oviedo, A. Bhattacharjee,
M. Stefszky, J.C. Scheytt, B. Brecht, C. Silberhorn, IEEE Photonics Technology
Letters 35 (2023) 769–772.
date_created: 2023-06-06T10:09:05Z
date_updated: 2023-06-06T10:13:05Z
department:
- _id: '15'
- _id: '58'
- _id: '623'
- _id: '230'
- _id: '288'
doi: 10.1109/lpt.2023.3277515
intvolume: ' 35'
issue: '14'
keyword:
- Electrical and Electronic Engineering
- Atomic and Molecular Physics
- and Optics
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
page: 769-772
publication: IEEE Photonics Technology Letters
publication_identifier:
issn:
- 1041-1135
- 1941-0174
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: A Pulsed Lidar System With Ultimate Quantum Range Accuracy
type: journal_article
user_id: '27150'
volume: 35
year: '2023'
...
---
_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: '44081'
article_number: '020306'
author:
- first_name: Laura
full_name: Serino, Laura
id: '88242'
last_name: Serino
- first_name: Jano
full_name: Gil López, Jano
id: '51223'
last_name: Gil López
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Raimund
full_name: Ricken, Raimund
last_name: Ricken
- 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: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Serino L, Gil López J, Stefszky M, et al. Realization of a Multi-Output Quantum
Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States.
PRX Quantum. 2023;4(2). doi:10.1103/prxquantum.4.020306
apa: Serino, L., Gil López, J., Stefszky, M., Ricken, R., Eigner, C., Brecht, B.,
& Silberhorn, C. (2023). Realization of a Multi-Output Quantum Pulse Gate
for Decoding High-Dimensional Temporal Modes of Single-Photon States. PRX Quantum,
4(2), Article 020306. https://doi.org/10.1103/prxquantum.4.020306
bibtex: '@article{Serino_Gil López_Stefszky_Ricken_Eigner_Brecht_Silberhorn_2023,
title={Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional
Temporal Modes of Single-Photon States}, volume={4}, DOI={10.1103/prxquantum.4.020306},
number={2020306}, journal={PRX Quantum}, publisher={American Physical Society
(APS)}, author={Serino, Laura and Gil López, Jano and Stefszky, Michael and Ricken,
Raimund and Eigner, Christof and Brecht, Benjamin and Silberhorn, Christine},
year={2023} }'
chicago: Serino, Laura, Jano Gil López, Michael Stefszky, Raimund Ricken, Christof
Eigner, Benjamin Brecht, and Christine Silberhorn. “Realization of a Multi-Output
Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon
States.” PRX Quantum 4, no. 2 (2023). https://doi.org/10.1103/prxquantum.4.020306.
ieee: 'L. Serino et al., “Realization of a Multi-Output Quantum Pulse Gate
for Decoding High-Dimensional Temporal Modes of Single-Photon States,” PRX
Quantum, vol. 4, no. 2, Art. no. 020306, 2023, doi: 10.1103/prxquantum.4.020306.'
mla: Serino, Laura, et al. “Realization of a Multi-Output Quantum Pulse Gate for
Decoding High-Dimensional Temporal Modes of Single-Photon States.” PRX Quantum,
vol. 4, no. 2, 020306, American Physical Society (APS), 2023, doi:10.1103/prxquantum.4.020306.
short: L. Serino, J. Gil López, M. Stefszky, R. Ricken, C. Eigner, B. Brecht, C.
Silberhorn, PRX Quantum 4 (2023).
date_created: 2023-04-20T12:38:23Z
date_updated: 2025-12-18T16:15:18Z
department:
- _id: '288'
- _id: '623'
- _id: '15'
doi: 10.1103/prxquantum.4.020306
intvolume: ' 4'
issue: '2'
keyword:
- General Physics and Astronomy
- Mathematical Physics
- Applied Mathematics
- Electronic
- Optical and Magnetic Materials
- Electrical and Electronic Engineering
- General Computer Science
language:
- iso: eng
publication: PRX Quantum
publication_identifier:
issn:
- 2691-3399
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional
Temporal Modes of Single-Photon States
type: journal_article
user_id: '27150'
volume: 4
year: '2023'
...
---
_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: '26218'
article_number: '085803'
author:
- 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: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Santandrea M, Stefszky M, Silberhorn C. General analytic theory of classical
collinear three-wave mixing in a monolithic cavity. Journal of Optics.
Published online 2021. doi:10.1088/2040-8986/ac0b90
apa: Santandrea, M., Stefszky, M., & Silberhorn, C. (2021). General analytic
theory of classical collinear three-wave mixing in a monolithic cavity. Journal
of Optics, Article 085803. https://doi.org/10.1088/2040-8986/ac0b90
bibtex: '@article{Santandrea_Stefszky_Silberhorn_2021, title={General analytic theory
of classical collinear three-wave mixing in a monolithic cavity}, DOI={10.1088/2040-8986/ac0b90},
number={085803}, journal={Journal of Optics}, author={Santandrea, Matteo and Stefszky,
Michael and Silberhorn, Christine}, year={2021} }'
chicago: Santandrea, Matteo, Michael Stefszky, and Christine Silberhorn. “General
Analytic Theory of Classical Collinear Three-Wave Mixing in a Monolithic Cavity.”
Journal of Optics, 2021. https://doi.org/10.1088/2040-8986/ac0b90.
ieee: 'M. Santandrea, M. Stefszky, and C. Silberhorn, “General analytic theory of
classical collinear three-wave mixing in a monolithic cavity,” Journal of Optics,
Art. no. 085803, 2021, doi: 10.1088/2040-8986/ac0b90.'
mla: Santandrea, Matteo, et al. “General Analytic Theory of Classical Collinear
Three-Wave Mixing in a Monolithic Cavity.” Journal of Optics, 085803, 2021,
doi:10.1088/2040-8986/ac0b90.
short: M. Santandrea, M. Stefszky, C. Silberhorn, Journal of Optics (2021).
date_created: 2021-10-15T09:21:54Z
date_updated: 2026-01-16T10:20:48Z
department:
- _id: '288'
- _id: '15'
doi: 10.1088/2040-8986/ac0b90
language:
- iso: eng
publication: Journal of Optics
publication_identifier:
issn:
- 2040-8978
- 2040-8986
publication_status: published
status: public
title: General analytic theory of classical collinear three-wave mixing in a monolithic
cavity
type: journal_article
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'
...