Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Optics Express

Highly efficient heralded single-photon source for telecom wavelengths based on a PPLN waveguide

Matthias Bock, Andreas Lenhard, Christopher J. Chunnilall, Christoph Becher

Published Oct 7, 2016• 119 citations
Publisher

Abstract

(0) of 0.001 ± 0.0003 indicating clear antibunching has been observed.
DOI
10.1364/oe.24.023992

Related papers

Fiberered tunable heralded single photon source at telecom wavelength

Martin Cordier, Fetah Benabid, Philippe Delaye +1 more

•Nov 13, 2019•0 citations

Highly efficient guided wave heralded-single-photon source at telecom wavelength

Olivier Alibart, Sébastien Tanzilli, Dan Ostrowsky +1 more

We demonstrate a highly efficient heralded single photon source based on parametric down-conversion in a PPLN waveguide. The telecommunication wavelength guided wave configuration allows simple incorporation into quantum communication experiments using installed optical networks.

Conference on Lasers and Electro-Optics•Jan 1, 2004•1 citation

Efficient single-photon upconversion detection using PPLN waveguides

Imogen Morland, Ruaridh Smith, Jack W. Thomas +8 more

Nonlinear Frequency Generation and Conversion: Materials and Devices•Mar 4, 2026•0 citations

A Fibre-Integrated SPDC Heralded Single-Photon Source Using Zn-Indiffused PPLN Ridge Waveguides at Telecom Wavelengths

Peter Iveson, Paolo L. Mennea, Goronwy Tawy +7 more

We report a fibre-integrated heralded single-photon source based on a commercial Zn-indiffused MgO:PPLN ridge waveguide operated in Type-0 degenerate spontaneous parametric down-conversion (SPDC). The device emits a broadband spectrum spanning approximately 70 nm across the telecom C-and L-bands, with an absolute brightness of $9.1\times 10^{9}$ pairs/(s mW). After accounting for optical losses, we determine an internal heralding efficiency of 58(5)%. The source maintains high purity, exhibiting a coincidences-to-accidentals ratio exceeding $9\times 10^{4}$ and a heralded second-order correlation of $g_{\text{h}}^{(2)}(0) = (5.53 \pm 0.46)\times 10^{-4}$. Low multi-photon noise and broadband emission demonstrate the viability of such platforms for wavelength-multiplexed quantum networking.

quant-pharXiv:2607.13215•Optics Continuum•Jul 16, 2026•0 citations

Hybrid integration for heralded single photon generation

Thomas Meany, LA Ngah, Matthew J. Collins +7 more

We report a hybrid integrated source of heralded photons at telecom wavelengths. We have combined high efficiency periodically poled lithium niobate (PPLN) waveguides, low-loss laser inscribed circuits and fibre Bragg gratings. We show the quality of the laser written components to be sufficient to produce high quality heralded single photons.

•Jan 1, 2014•0 citations

High-brightness photon pairs and strongly antibunching heralded single photons from a highly nonlinear optical fiber

N. L. Petrov, Andrei B. Fedotov, Aleksei M. Zheltikov

Optics Communications•May 3, 2019•14 citations
We report a fibre-integrated heralded single-photon source based on a commercial Zn-indiffused MgO:PPLN ridge waveguide operated in Type-0 degenerate spontaneous parametric down-conversion (SPDC). The device emits a broadband spectrum spanning approximately 70 nm across the telecom C-and L-bands, with an absolute brightness of 9.1×1099.1\times 10^{9}9.1×109 pairs/(s mW). After accounting for optical losses, we determine an internal heralding efficiency of 58(5)%. The source maintains high purity, exhibiting a coincidences-to-accidentals ratio exceeding 9×1049\times 10^{4}9×104 and a heralded second-order correlation of gh(2)(0)=(5.53±0.46)×10−4g_{\text{h}}^{(2)}(0) = (5.53 \pm 0.46)\times 10^{-4}gh(2)​(0)=(5.53±0.46)×10−4. Low multi-photon noise and broadband emission demonstrate the viability of such platforms for wavelength-multiplexed quantum networking.