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Jitter analysis of a superconducting nanowire single photon detector

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arxiv 1308.0763 v1 pith:AQ6QPI7N submitted 2013-08-04 cond-mat.supr-con physics.ins-det

Jitter analysis of a superconducting nanowire single photon detector

Lixing You , Xiaoyan Yang , Yuhao He , Wenxing Zhang , Dengkuan Liu , Weijun Zhang , Lu Zhang , Ling Zhang
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Xiaoyu Liu Sijing Chen Zhen Wang Xiaoming Xie
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classification cond-mat.supr-con physics.ins-det
keywords jittersnspdsystemphotonsingledetectornanowiresuperconducting
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Jitter is one of the key parameters for a superconducting nanowire single photon detector (SNSPD). Using an optimized time-correlated single photon counting system for jitter measurement, we extensively studied the dependence of system jitter on the bias current and working temperature. The signal-to-noise ratio of the single-photon-response pulse was proven to be an important factor in system jitter. The final system jitter was reduced to 18 ps by using a high-critical-current SNSPD, which showed an intrinsic SNSPD jitter of 15 ps. A laser ranging experiment using a 15-ps SNSPD achieved a record depth resolution of 3 mm at a wavelength of 1550 nm.

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