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  • Received: Sep. 6, 2013

    Accepted: --

    Posted: Feb. 1, 2014

    Published Online: Jan. 21, 2014

    The Author Email: Jianhua Huang (51112000005@ecnu.cn)

    DOI: 10.3788/aos201434.0204001

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    Huang Jianhua, Wu Guang, Zeng Heping. Study of 1.5 GHz Harmonics Ultrashort Pulse Gated InGaAs/InP Avalanche Photodiode Single-Photon Detection[J]. Acta Optica Sinica, 2014, 34(2): 204001

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Acta Optica Sinica, Vol. 34, Issue 2, 204001 (2014)

Study of 1.5 GHz Harmonics Ultrashort Pulse Gated InGaAs/InP Avalanche Photodiode Single-Photon Detection

Jianhua Huang*, Guang Wu, and Heping Zeng

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  • [in Chinese]

Abstract

A high-speed single-photon detection technique based on gated InGaAs/InP avalanche photodiode (APD) is proposed. The 1.5 GHz harmonics ultrashort pulse is applied to an InGaAs/InP APD, and the photo-excited avalanche signal is buried in the harmonics noise due to the capacitive response of APD. By utilizing a 700 MHz low-pass filter, we achieve 50.6 dB noise suppression and extract the avalanche signal efficiently. With the InGaAs/InP APD operated under -30 ℃ by thermal electrical cooler, and driven by 1.5 GHz harmonics ultarshort pulse gating, a detection efficiency of 35% at 1550 nm with the dark count probability of 6.4×10-5 per gate is obtained, and the afterpulse probability is 6.0×10-5 per gate after 2.7 ns at the detection efficiency of 15%.

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