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Proceedings Paper

A single-photon detector without cooler
Author(s): Bing Zhou; Fu-yu Huang; Dong-sheng Wu; Jie Liu
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Paper Abstract

One type of single-photon detector that without cooler, which is mainly consisted by noise voltage control circuit and precise pulse width detection circuit, is presented. The noise voltage control circuit is using the characteristic the noise rapid increase in avalanche voltage. The detector signal after forward and video amplifier is measured. When noise voltage exceed a certain range, the bias voltage would be decreased; when noise signal minished, the bias voltage would be increased. So the bias voltage of APD is dynamically fixed by certain voltage. When the avalanche voltage changes with the temperature, the noise character nearby avalanche is resemble. So the bias voltage could be stabilized based on noise character. The detector’s output SNR would descend greatly if there was no cooler, and the phonon avalanche signal would not measured efficiently by the tradition extent detection. Considering the difference of time width between photon avalanche signal and noise signal, the precise pulse width detection method is adopted. It can filter the narrow noise signal and only detect photon avalanche signal which has larger pulse width efficiently.

Paper Details

Date Published: 30 November 2012
PDF: 8 pages
Proc. SPIE 8561, Advanced Sensor Systems and Applications V, 85611E (30 November 2012); doi: 10.1117/12.999979
Show Author Affiliations
Bing Zhou, Shijiazhuang Mechanical Engineering College (China)
Fu-yu Huang, Shijiazhuang Mechanical Engineering College (China)
Dong-sheng Wu, Shijiazhuang Mechanical Engineering College (China)
Jie Liu, Shijiazhuang Mechanical Engineering College (China)

Published in SPIE Proceedings Vol. 8561:
Advanced Sensor Systems and Applications V
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan, Editor(s)

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