Time-of-flight laser ranging and imaging at 1550 nm using low-jitter superconducting nanowire single-photon detection system
- 3 May 2013
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 52 (14), 3241-5
- https://doi.org/10.1364/ao.52.003241
Abstract
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 stand-off 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 systemsComment: to appear on Applied OpticKeywords
Funding Information
- National Natural Science Foundation of China (91121022)
- 973 Program (2011CBA00202)
- 863 Program (2011AA010802)
- Chinese Academy of Sciences (XDB04010200, XDB04020100)
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