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Optically Self-Balanced InGaAs–InP Avalanche Photodiode for Infrared Single-Photon Detection

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4 Author(s)
Jian, Yi ; State Key Lab. of Precision Spectrosc., East China Normal Univ., Shanghai, China ; Wu, E. ; Guang Wu ; Zeng, Heping

We demonstrated a robust noise cancellation by using an optical self-differential technique for the near-infrared single-photon detection based on an InGaAs-InP avalanche photodiode, which enabled 31-dB suppression of the spike noise, resulting in a detection efficiency of 22.4% with an afterpulse probability of 2.4% at the gating frequency of 25 MHz. This technique may provide a promising way for high-efficiency and low-noise fast detection of infrared single photons.

Published in:

Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 3 )