Dual anode single-photon avalanche diode for high-speed and low-noise Geiger-mode operation

Chulwoo Park, Seok Beom Cho, Chan Yong Park, Soohyun Baek, Sang Kook Han

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


The after-pulsing effect is a common problem in high-speed and low-noise single-photon detection based on single-photon avalanche diodes (SPADs). This article presents a dual anode InGaAs/InP SPAD (DA-SPAD) with two separate anode output ports that can be utilized for discriminating relatively weak avalanche signals, providing a simple and robust configuration of the SPAD-based single-photon detection system. Weak avalanche signals with amplitudes below the amplitude of the parasitic capacitive response of the SPAD were easily detected by the DA-SPAD and a simple subtraction circuit. The gated Geiger-mode performance of the DA-SPAD was also investigated. At a gating frequency of 1 GHz, the detection efficiency was 20.4% with an after-pulse probability of 3.5% at a temperature of 20 °C.

Original languageEnglish
Pages (from-to)18201-18209
Number of pages9
JournalOptics Express
Issue number13
Publication statusPublished - 2019

Bibliographical note

Publisher Copyright:
© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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