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Proceedings Paper

Measurement of InGaAs single photon detector quantum efficiency at 1550nm
Author(s): Kun Zhao; Changming Liu; Haidong Chen; Xueshun Shi
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Paper Abstract

Single photon detectors nowadays are widely used in numerous applications such as quantum cryptography, laser ranging, single molecule spectroscopy and so on. And the calibration of the detection efficiency is quite important for some of the applications. In recent years, researchers find that correlated photon pairs can be employed to calibrate the detection efficiency of single-photon detectors with quite high precision. Firstly, we calibrated the InGaAs single photon detector quantum efficiency at 1550nm by correlated photon pairs. Consistency between the measurement result using correlated photon pairs and the reference value is better than 0.8%. Secondly, the detectors are calibrated with an attenuated laser source. Thirdly, the two methods for measuring the quantum efficiency of single photon detectors, correlated photon pairs and laser attenuation, respectively, are discussed and analyzed in detail. Finally, results derived from the two methods have been compared with each other.

Paper Details

Date Published: 19 February 2015
PDF: 6 pages
Proc. SPIE 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014), 94492Y (19 February 2015); doi: 10.1117/12.2076017
Show Author Affiliations
Kun Zhao, The 41st Institute of China Electronics Technology Group Corp. (China)
Changming Liu, The 41st Institute of China Electronics Technology Group Corp. (China)
Haidong Chen, The 41st Institute of China Electronics Technology Group Corp. (China)
Xueshun Shi, The 41st Institute of China Electronics Technology Group Corp. (China)
Science and Technology on Electronic Test & Measurement Laboratory (China)


Published in SPIE Proceedings Vol. 9449:
The International Conference on Photonics and Optical Engineering (icPOE 2014)
Ailing Tian; Anand Asundi; Weiguo Liu; Chunmin Zhang, Editor(s)

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