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High-birefringence direct UV-written waveguides for use as heralded single-photon sources at telecommunication wavelengths

High-birefringence direct UV-written waveguides for use as heralded single-photon sources at telecommunication wavelengths
High-birefringence direct UV-written waveguides for use as heralded single-photon sources at telecommunication wavelengths
Direct UV-written waveguides are fabricated in silica-on-silicon with birefringence of (4.9 ± 0.2) × 10−4, much greater than previously reported in this platform. We show that these waveguides are suitable for the generation of heralded single photons at telecommunication wavelengths by spontaneous four-wave mixing. A pulsed pump field at 1060 nm generates pairs of photons in highly detuned, spectrally uncorrelated modes near 1550 nm and 800 nm. Waveguide-to-fiber coupling efficiencies of 78–91 % are achieved for all fields. Waveguide birefringence is controlled through dopant concentration of GeCl4 and BCl3 using the flame hydrolysis deposition process. The technology provides a route towards the scalability of silica-on-silicon integrated components for photonic quantum experiments.
Integrated optics, Glass waveguides, deposition and fabrication
2334-2536
24678-24686
Posner, Matthew T.
5cd0008f-f5bc-41ff-b51d-0187af17acff
Hiemstra, Thomas
a9555635-5c3a-4d2d-95e4-00db4a2bdf20
Mennea, Paolo
d994ba05-bcc1-4be3-8ba1-439fb1535a3f
Bannerman, Rex
7f7d5c3e-8e5d-45d5-8fd7-8d1511330e08
Hoff, Ulrich B.
faced53d-5109-4ea8-9a66-ca31a72e048c
Eckstein, Andreas
ba926c72-48a7-42d8-9cd2-1b3370b7d210
Kolthammer, W.S.
31714cf7-d0ac-4a20-be97-2f8d464cd433
Walmsley, Ian
ea508b21-657c-4834-a37b-82a0d995caa3
Smith, Devin
49156a41-41f1-4f1b-8ce3-ef6f894e190c
Gates, James
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Smith, Peter
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Posner, Matthew T.
5cd0008f-f5bc-41ff-b51d-0187af17acff
Hiemstra, Thomas
a9555635-5c3a-4d2d-95e4-00db4a2bdf20
Mennea, Paolo
d994ba05-bcc1-4be3-8ba1-439fb1535a3f
Bannerman, Rex
7f7d5c3e-8e5d-45d5-8fd7-8d1511330e08
Hoff, Ulrich B.
faced53d-5109-4ea8-9a66-ca31a72e048c
Eckstein, Andreas
ba926c72-48a7-42d8-9cd2-1b3370b7d210
Kolthammer, W.S.
31714cf7-d0ac-4a20-be97-2f8d464cd433
Walmsley, Ian
ea508b21-657c-4834-a37b-82a0d995caa3
Smith, Devin
49156a41-41f1-4f1b-8ce3-ef6f894e190c
Gates, James
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Smith, Peter
8979668a-8b7a-4838-9a74-1a7cfc6665f6

Posner, Matthew T., Hiemstra, Thomas, Mennea, Paolo, Bannerman, Rex, Hoff, Ulrich B., Eckstein, Andreas, Kolthammer, W.S., Walmsley, Ian, Smith, Devin, Gates, James and Smith, Peter (2018) High-birefringence direct UV-written waveguides for use as heralded single-photon sources at telecommunication wavelengths. Optica, 26 (19), 24678-24686. (doi:10.1364/OE.26.024678).

Record type: Article

Abstract

Direct UV-written waveguides are fabricated in silica-on-silicon with birefringence of (4.9 ± 0.2) × 10−4, much greater than previously reported in this platform. We show that these waveguides are suitable for the generation of heralded single photons at telecommunication wavelengths by spontaneous four-wave mixing. A pulsed pump field at 1060 nm generates pairs of photons in highly detuned, spectrally uncorrelated modes near 1550 nm and 800 nm. Waveguide-to-fiber coupling efficiencies of 78–91 % are achieved for all fields. Waveguide birefringence is controlled through dopant concentration of GeCl4 and BCl3 using the flame hydrolysis deposition process. The technology provides a route towards the scalability of silica-on-silicon integrated components for photonic quantum experiments.

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Accepted/In Press date: 1 August 2018
e-pub ahead of print date: 6 September 2018
Keywords: Integrated optics, Glass waveguides, deposition and fabrication

Identifiers

Local EPrints ID: 423878
URI: https://eprints.soton.ac.uk/id/eprint/423878
ISSN: 2334-2536
PURE UUID: c44e5515-f227-48ab-adab-f3e8a6c6b28e
ORCID for James Gates: ORCID iD orcid.org/0000-0001-8671-5987
ORCID for Peter Smith: ORCID iD orcid.org/0000-0003-0319-718X

Catalogue record

Date deposited: 03 Oct 2018 16:30
Last modified: 17 Oct 2019 00:38

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Contributors

Author: Matthew T. Posner
Author: Thomas Hiemstra
Author: Paolo Mennea
Author: Rex Bannerman
Author: Ulrich B. Hoff
Author: Andreas Eckstein
Author: W.S. Kolthammer
Author: Ian Walmsley
Author: Devin Smith
Author: James Gates ORCID iD
Author: Peter Smith ORCID iD

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