Room-Temperature Single-Photon Detection With 1.5-GHz Gated InGaAs/InP Avalanche Photodiode

A room-temperature single-photon detector was demonstrated with InGaAs/InP avalanche photodiode (APD) with negligible afterpulse effect and low dark count rates. The APD was operated in 1.5-GHz sinusoidally gated Geiger mode by using appropriate low-pass filters to minimize the capacitive spike nois...

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Bibliographic Details
Published in:IEEE photonics technology letters 2017-01, Vol.29 (1), p.142-145
Main Authors: Liang, Yan, Chen, Yuanjin, Huang, Zinan, Bai, Guomin, Yu, Min, Zeng, Heping
Format: Article
Language:English
Subjects:
Avalanche photodiodes
Biomedical optical imaging
Cooling
Detectors
high-speed detection
High-speed optical techniques
Logic gates
Optical imaging
room temperature
Single-photon detection
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Summary:A room-temperature single-photon detector was demonstrated with InGaAs/InP avalanche photodiode (APD) with negligible afterpulse effect and low dark count rates. The APD was operated in 1.5-GHz sinusoidally gated Geiger mode by using appropriate low-pass filters to minimize the capacitive spike noises. A detection efficiency of ~21% was attained with the dark count rate of 8×10 -5 per gate and a afterpulse probability of 1.4%, showing excellent performance without cooling. Moreover, we varied the amplitude of the sinusoidal gates to further optimize the performance. The room-temperature single-photon detectors with compact structures and low power consumption offer advantages in practical quantum key distribution and ultradistance laser ranging systems.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2016.2630273