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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 19 — Sep. 12, 2011
  • pp: 18510–18515

Weak avalanche discrimination for gated-mode single-photon avalanche photodiodes

Seok-Beom Cho and Sae-Kyoung Kang  »View Author Affiliations

Optics Express, Vol. 19, Issue 19, pp. 18510-18515 (2011)

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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 OSA

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(040.1345) Detectors : Avalanche photodiodes (APDs)

ToC Category:

Original Manuscript: June 29, 2011
Revised Manuscript: August 23, 2011
Manuscript Accepted: August 31, 2011
Published: September 7, 2011

Seok-Beom Cho and Sae-Kyoung Kang, "Weak avalanche discrimination for gated-mode single-photon avalanche photodiodes," Opt. Express 19, 18510-18515 (2011)

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