Experimental study on single photon heterodyne detection performance

Hongzhou Dong; Mingwu Ao; Xianming Yang; Yong Liu

doi:10.1117/12.2586056

12 March 2021 Experimental study on single photon heterodyne detection performance

Hongzhou Dong, Mingwu Ao, Xianming Yang, Yong Liu

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 117630T (2021) https://doi.org/10.1117/12.2586056
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

Abstract

By constructing an experimental system, the heterodyne detection of the photon counting system is realized. The effects of photon counting rate, sampling rate, background light noise and beam mismatching angle on the single-photon heterodyne detection performance based on power spectrum averaging are studied experimentally. The results show that the power spectrum average results have a saturated signal-to-noise ratio (SNR) at a certain count rate, and the saturation SNR increases with the increase of the count rate. As the sampling rate increases, a higher saturation SNR can be obtained. The local oscillator and signal light mismatch angles have the same effect on single photon heterodyne detection compared to linear detection. The research results in this paper have a promoting significance for the practical application of single-photon heterodyne detection technology.

Citation Download Citation

Hongzhou Dong, Mingwu Ao, Xianming Yang, and Yong Liu "Experimental study on single photon heterodyne detection performance", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 117630T (12 March 2021); https://doi.org/10.1117/12.2586056

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