Low-noise high-speed InGaAs/InP-based single-photon detector.
A low-noise high-speed InGaAs/InP-based single-photon detector was demonstrated with a double-self-differencing spike signal cancellation technique. A photon-number resolving method was used to analyze the ratio of avalanche signal to background noise. By adding a post-self-differencing circuit to the pre-self-differencing circuit, the signal to noise ratio was improved by 11.0 dB. The typical error count probability was as low as 2.1% and 6.4% at the detection efficiency of 20.6% and 30.5%, respectively.
Chen
Xiuliang
X
State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China.
Wu
E
E
Wu
Guang
G
Zeng
Heping
H
D000465:Algorithms; D001151:Arsenic / Q000737:chemistry*; D003198:Computer Simulation; D004867:Equipment Design; D005708:Gallium / Q000737:chemistry*; D007204:Indium / Q000737:chemistry*; D055095:Optics and Photonics; D010758:Phosphorus / Q000737:chemistry*; D017785:Photons; D011336:Probability; D012815:Signal Processing, Computer-Assisted; D013997:Time Factors
D007204:Indium; D010758:Phosphorus; D005708:Gallium; D001151:Arsenic