Ultra-narrowband interference circuits for 1.25 GHz gated single-photon InGaAs/InP avalanche photodiodes
2024-05-08
Fan, Yuanbin; Shi, Tingting; Ji, Weijie; Zhou, Lai; Ji, Yang; Yuan, Zhiliang Source: CLEO: Fundamental Science, CLEO:FS 2023, 2023, CLEO: Fundamental Science, CLEO:FS 2023;
Abstract:
We report a novel ultra-narrowband interference circuit (UNIC) for low noise photon counting of 1.25GHz gated InGaAs/InP avalanche photodiodes. We achieve record-low afterpulsing probability of 0.5% at a detection efficiency of 25.3%.
© Optica Publishing Group 2023, ©2023TheAuthor(s) (10 refs.)
