Related Experiment Video
Updated: May 29, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Weak avalanche discrimination for gated-mode single-photon avalanche photodiodes
Seok-Beom Cho1, Sae-Kyoung Kang
1Electronics and Telecommunications Research Institute, Daejeon, South Korea. sbcho@sk.com
Abstract:
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.
Related Concept Videos
Determination of Crystal Structures
Schottky Barrier Diode
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.
Diode: Reverse bias
Diode: Forward bias
The behavior of a diode in forward bias...

