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

Conference on Lasers and Electro-Optics

Single-photon detector based on frequency up-conversion in MgO-doped periodically-poled LiNbO3 waveguide: recordlow dark counts and detectable photons

Da Li, Yujie J. Ding, Ioulia B. Zotova, Narasimha S. Prasad

Published Jan 1, 2012• 0 citations
Publisher

Abstract

We have implemented a single-photon detector in the 1500-nm band based on frequency up-conversion in a MgO-doped periodically-poled LiNbO3 waveguide, with a record-low dark count rate and a record-low detectable signal photon rate.
DOI
10.1364/cleo_at.2012.jth3k.4

Related papers

Long-wavelength-pumped single-photon detector based on frequency up-conversion in MgO-doped periodically-poled LiNbO3 waveguide reaching ultralow dark count rates

Da Li, Guan Sun, Yujie J. Ding +1 more

We implemented single-photon detector in 1500-nm band based on frequency up-conversion in nonlinear waveguide at pump wavelength of 1920 nm. Ultralow dark count rate and signal photon detection rate are 20 s−1 and 56.8 s−1.

•Jan 1, 2013•0 citations

Single-photon detector based on frequency up-conversion in MgO-doped periodically-poled LiNbO3 waveguide: Record-low dark counts and detectable photons

Li -, Ding Ding, Зотова +1 more

Conference on Lasers and Electro-Optics•Jan 1, 2012•0 citations

Single-Photon Detection in Near-Infrared Region Based on Frequency Upconversion in MgO-Doped Periodically-Poled Lithium Niobate Waveguide

Da Li, Yi Jiang, Yujie J. Ding +3 more

MgO-doped periodically-poled LiNbO3 waveguide is used to up-convert photons at 1.535-1.568 µm to those at 598-603 nm, which can be detected by avalanche photodetector at single-photon counting level. Conversion efficiencies up to 45% are achieved.

•Jan 1, 2011•0 citations

Approaching single-photon detection in near-infrared region

Da Li, Yi Jiang, Yujie J. Ding +2 more

We have implemented a single-photon detection system in the 1.55-μm region, based on frequency up-conversion in MgO-doped periodically poled LiNbO3 waveguide. We have subsequently reached a record-low dark count rate of 45 counts per second. The detectable signal photon rate, i.e., the rate for counting the up-converted photons corrected by the dark counts, noises, and losses, reaches a record-low value of 81 photons per second. Through free-space coupling, we have eliminated the dark counts induced by parametric fluorescence.

Applied Physics Letters•Oct 1, 2012•9 citations

Efficient and low-noise single-photon detection in 1550 nm communication band by frequency upconversion in periodically poled LiNbO_3 waveguides

Hidehiko Kamada, Masaki Asobe, Toshimori Honjo +5 more

We demonstrate 1500 nm band single-photon detection with low dark-count noise and a potentially high efficiency, which may allow long distance and high-bit-rate quantum key distribution. By developing frequency upconversion devices based on periodically poled lithium niobate waveguides, which are specifically designed to use a pump wavelength longer than that of communication-band photons, we completely eliminate the dark-count noise caused by parasitic nonlinear processes in the waveguide. We observed an internal conversion efficiency as high as 40% and demonstrated scaling down to the single photon level while maintaining a background dark-count rate of 10(2)s(-1).

Optics Letters•Mar 18, 2008•50 citations

Ultra low dark-count-rate up-conversion single photon detector

Xiao Hong Tang, Lijun Ma, Oliver Slattery

We have demonstrated an ultra low noise up-conversion single photon detector using a periodically poled lithium niobate waveguide. The dark count rate of this detector is lower than 100 counts/second at 10% detection efficiency.

IEEE Photonics Society Annual Meeting•Nov 1, 2010•3 citations
We have implemented a single-photon detection system in the 1.55-μm region, based on frequency up-conversion in MgO-doped periodically poled LiNbO3 waveguide. We have subsequently reached a record-low dark count rate of 45 counts per second. The detectable signal photon rate, i.e., the rate for counting the up-converted photons corrected by the dark counts, noises, and losses, reaches a record-low value of 81 photons per second. Through free-space coupling, we have eliminated the dark counts induced by parametric fluorescence.
We demonstrate 1500 nm band single-photon detection with low dark-count noise and a potentially high efficiency, which may allow long distance and high-bit-rate quantum key distribution. By developing frequency upconversion devices based on periodically poled lithium niobate waveguides, which are specifically designed to use a pump wavelength longer than that of communication-band photons, we completely eliminate the dark-count noise caused by parasitic nonlinear processes in the waveguide. We observed an internal conversion efficiency as high as 40% and demonstrated scaling down to the single photon level while maintaining a background dark-count rate of 10(2)s(-1).