Single photon ranging system using two wavelengths laser and analysis of precision

Yunfei Chen; Weiji He; Zhuang Miao; Guohua Gu; Qian Chen

doi:10.1117/12.2034467

19 September 2013 Single photon ranging system using two wavelengths laser and analysis of precision

Yunfei Chen, Weiji He, Zhuang Miao, Guohua Gu, Qian Chen

Proceedings Volume 8905, International Symposium on Photoelectronic Detection and Imaging 2013: Laser Sensing and Imaging and Applications; 89051N (2013) https://doi.org/10.1117/12.2034467
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

The laser ranging system based on time correlation single photon counting technology and single photon detector has the feature of high precision and low emergent energy etc. In this paper, we established a single photon laser ranging system that use the supercontinuum laser as light source, and two wavelengths (532nm and 830nm) of echo signal as the stop signal. We propose a new method that is capable to improve the single photon ranging system performance. The method is implemented by using two single-photon detectors to receive respectively the two different wavelength signals at the same time. We extracted the firings of the two detectors triggered by the same laser pulse at the same time and then took mean time of the two firings as the combined detection time-of-flight. The detection by two channels using two wavelengths will effectively improve the detection precision and decrease the false alarm probability. Finally, an experimental single photon ranging system was established. Through a lot of experiments, we got the system precision using both single and two wavelengths and verified the effectiveness of the method.

Citation Download Citation

Yunfei Chen, Weiji He, Zhuang Miao, Guohua Gu, and Qian Chen "Single photon ranging system using two wavelengths laser and analysis of precision", Proc. SPIE 8905, International Symposium on Photoelectronic Detection and Imaging 2013: Laser Sensing and Imaging and Applications, 89051N (19 September 2013); https://doi.org/10.1117/12.2034467

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