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학술지 Weak Avalanche Discrimination for Gated-Mode Single-Photon Avalanche Photodiodes
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저자
조석범, 강세경
발행일
201109
출처
Optics Express, v.19 no.19, pp.18510-18515
ISSN
1094-4087
출판사
Optical Society of America(OSA)
DOI
https://dx.doi.org/10.1364/OE.19.018510
협약과제
11MI1400, 100Gbps급 이더넷 및 광전송기술개발, 김광준
초록
The after-pulsing effect is a common problem that needs to be overcome for high-speed single-photon detection based on gated-mode single-photon avalanche photodiodes (SPADs). This paper presents a simple and practical method for suppression of the after-pulsing probability using an auxiliary signal to discriminate quite weak avalanches. The detection efficiency and after-pulse probability of an InGaAs/InP SPAD are investigated with a 10 MHz gating for conventional and proposed methods, and a sharp decrease of after-pulse probability is demonstrated with the application of the proposed method. At a gating frequency of 100 MHz, a detection efficiency of 10.4% is achieved with an after-pulse probability of 5.6% without dead time. © 2011 Optical Society of America.
KSP 제안 키워드
100 MHz, Auxiliary signal, Avalanche photo diode(APD), Common problem, Detection efficiency, High Speed, Practical method, Sharp decrease, Single-photon avalanche photodiodes, Single-photon detection, dead time