Ultra-narrowband interference circuits for 1.25 GHz gated single-photon InGaAs/InP avalanche photodiodes
2024-05-14
Fan, Yuanbin; Shi, Tingting; Ji, Weijie; Zhou, Lai; Ji, Yang; Yuan, Zhiliang Source: CLEO: Applications and Technology, CLEO:A and T 2023, 2023, CLEO: Applications and Technology, CLEO:A and T 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%.
CLEO 2023 © Optica Publishing Group 2023, © 2023 The Author(s) (10 refs.)
