---
_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'
...