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arXiv · 1602.03816

Superconducting nanowire single photon detector at 532 nm and demonstration in satellite laser ranging

Hao Li·Sijing Chen·Lixing You·Wengdong Meng·Zhibo Wu·Zhongping Zhang·Kai Tang·Lu Zhang·Weijun Zhang·Xiaoyan Yang·Xiaoyu Liu·Zhen Wang·Xiaoming Xie
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Abstract

Superconducting nanowire single-photon detectors (SNSPDs) at a wavelength of 532 nm were designed and fabricated aiming to satellite laser ranging (SLR) applications. The NbN SNSPDs were fabricated on one-dimensional photonic crystals with a sensitive-area diameter of 42 um. The devices were coupled with multimode fiber (phi=50um) and exhibited a maximum system detection efficiency of 75% at an extremely low dark count rate of <0.1 Hz. An SLR experiment using an SNSPD at a wavelength of 532 nm was successfully demonstrated. The results showed a depth ranging with a precision of ~8.0 mm for the target satellite LARES, which is ~3,000 km away from the ground ranging station at the Sheshan Observatory.

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Hao Li, Sijing Chen, Lixing You, Wengdong Meng, Zhibo Wu, Zhongping Zhang, Kai Tang, Lu Zhang, Weijun Zhang, Xiaoyan Yang, Xiaoyu Liu, Zhen Wang, Xiaoming Xie. 2016-02-11. Superconducting nanowire single photon detector at 532 nm and demonstration in satellite laser ranging. https://doi.org/10.1364/oe.24.003535

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