We developed a time-correlated single-photon counting (TCSPC) system based on the low-jitter superconducting nanowire single-photon detection (SNSPD) technology. The causes of jitters in the TCSPC system were analyzed. Owing to the low jitter of the SNSPD technology, a system jitter of 26.8 ps full width at half-maximum was achieved after optimizing the system. We demonstrated time-of-flight laser ranging at 1550 nm wavelength at a standoff distance of 115 m based on this TCSPC system. A depth resolution of 4 mm was achieved directly by locating the centroids of each of the two return signals. Laser imaging was also performed using the TCSPC system. This low-jitter TCSPC system using the SNSPD technology presents great potential in long-range measurements and imaging applications for low-energy-level and eye-safe laser systems.
© 2013 Optical Society of America
Original Manuscript: February 11, 2013
Revised Manuscript: March 18, 2013
Manuscript Accepted: April 11, 2013
Published: May 3, 2013
Sijing Chen, Dengkuan Liu, Wenxing Zhang, Lixing You, Yuhao He, Weijun Zhang, Xiaoyan Yang, Guang Wu, Min Ren, Heping Zeng, Zhen Wang, Xiaoming Xie, and Mianheng Jiang, "Time-of-flight laser ranging and imaging at 1550 nm using low-jitter superconducting nanowire single-photon detection system," Appl. Opt. 52, 3241-3245 (2013)