Acta Photonica Sinica, Volume. 46, Issue 3, 304001(2017)
Measurement System for Quantum Efficiency of the Single Photon Detector Based on Correlated Photons
The measurement facility based on parametric down-conversion technique was established to measure the quantum efficiency of the near-infrared band single-photon detector. The correlated photons were generated via spontaneous parametric down-conversion in a periodically poled potassium titanyl phosphate crystal pumped by a 518 nm picosecond laser. The detection efficiency of Si-avalanche photodiode and InGaAs-avalanche photodiode single-photon detectors were measured via correlated photon pairs at 778 nm and 1 550 nm, respectively, and the measrement uncertainty was analyzed. The experiment results indicated that the facility can measuer near inferad single-photon detectors quantum efficiency with 1% measrement uncertainty.
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SHI Xue-shun, LIU Chang-ming, ZHAO Kun, CHEN Hai-dong. Measurement System for Quantum Efficiency of the Single Photon Detector Based on Correlated Photons[J]. Acta Photonica Sinica, 2017, 46(3): 304001
Received: Aug. 15, 2016
Accepted: --
Published Online: Apr. 10, 2017
The Author Email: Xue-shun SHI (xshshi@163.com)