Bouzid, Abdessattar Han, Sang-Wook Lee, Min-Soo Moon, Sung 2024-01-20T12:31:40Z 2024-01-20T12:31:40Z 2021-09-05 2013-05 1882-0778 https://pubs.kist.re.kr/handle/201004/128111 The afterpulse effect is one of the major bottlenecks limiting the performances of InGaAs/InP single-photon avalanche photodiodes (SPADs) for high-speed operation. In this paper, we present a practical and easy way to implement an afterpulse suppression scheme. Using an analog integrator circuit to discriminate small avalanche signals, we reduced drastically the afterpulse noise of the detector. At a repetition frequency of 25 MHz, the overall afterpulse probability is 1.48% with a detection efficiency of 15.6% and a dark count probability of 1.3 x 10(-5). In addition, the detector features a maximum count rate of 25 MHz. (c) 2013 The Japan Society of Applied Physics English JAPAN SOC APPLIED PHYSICS QUANTUM KEY DISTRIBUTION MU-M PHOTODIODE SYSTEM DIODES GHZ Single-Photon Detector at Telecommunication Wavelengths Using an Analog Integrator for Ultra Small Avalanche Discrimination Article 10.7567/APEX.6.052201 1 APPLIED PHYSICS EXPRESS, v.6, no.5 APPLIED PHYSICS EXPRESS 6 5 scie scopus 000318778800015 2-s2.0-84880895462 Physics, Applied Physics Article QUANTUM KEY DISTRIBUTION MU-M PHOTODIODE SYSTEM DIODES GHZ Single Photon Integrator Quantum efficiency After pulse