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Kilometer-range, high resolution depth imaging via 1560 nm wavelength single-photon detection
journal contribution
posted on 2023-06-09, 13:34 authored by Aongus McCarthy, Nils J Krichel, Nathan R Gemmell, Ximing Ren, Michael G Tanner, Sander N Dorenbos, Val Zwiller, Robert H Hadfield, Gerald S BullerThis paper highlights a significant advance in time-of-flight depth imaging: by using a scanning transceiver which incorporated a free-running, low noise superconducting nanowire single-photon detector, we were able to obtain centimeter resolution depth images of low-signature objects in daylight at stand-off distances of the order of one kilometer at the relatively eye-safe wavelength of 1560 nm. The detector used had an efficiency of 18% at 1 kHz dark count rate, and the overall system jitter was ~100 ps. The depth images were acquired by illuminating the scene with an optical output power level of less than 250 µW average, and using per-pixel dwell times in the millisecond regime.
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Publication status
- Published
File Version
- Published version
Journal
Optics ExpressISSN
1094-4087Publisher
Optical Society of AmericaExternal DOI
Issue
7Volume
21Page range
8904-8915Department affiliated with
- Engineering and Design Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-05-30First Open Access (FOA) Date
2018-05-30First Compliant Deposit (FCD) Date
2018-05-30Usage metrics
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