Journal of the European Optical Society-Rapid Publications, Volume. 19, Issue 1, 2023002(2023)
Space Debris Laser Ranging with range-gate-free Superconducting Nanowire Single-Photon Detector
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Fig. 2. The process of each pulse for DLR in range-gate-free mode.
Fig. 3. The DLR data in normal mode and range-gate-free mode. (a) The DLR data in normal mode. (b) The DLR data in range-gate-free mode.
Fig. 5. The DLR data, the TB and RB of the orbital prediction are relatively large. (a) The TB of the orbital prediction is 246 ms. (b) The RB of the orbital prediction is 1355.5 m.
Fig. 8. The success probability of DLR with different sizes and ranges. (a) 2 × 2 SNSPD array and (b) 4 × 4 SNSPD array.
Fig. 9. The echo rate statistics for different targets. (a) 2 × 2 SNSPD array and (b) 4 × 4 SNSPD array.
Table 1. Parameters and values of the system.
View tableView in ArticleTable 1. Parameters and values of the system.
Notation Values Parameters Et 400–3000 mJ Laser single-pulse energy, generally using 400 mJ ft 100 Hz Laser repetition rate, laser power is 40–300 W wp 6.7 ns Laser pulse width hν hc/λ, λ = 1064 nm Photon energy, λ is laser wavelength ηt 0.60 Transmitting optical system efficiency θd 3″ Gaussian beam divergence half angle θp 2″ Laser beam pointing error θj 2″ RMS (Root Mean Square) tracking mount jitter Ar π(d/2)2, d = 1.2 m Telescope receive area ηr 0.40 Receiving optical system efficiency ηc ~32% @ 2 × 2, ~80% @ 4 × 4 Detection efficiency, ~10% @ each pixel τ ~200 ps Detector response time trt ~500 ns Recovery time ndcr <1 kHz/pixel Dark count rate Ta 0.60 One way atmospheric transmission Tc 1.00 One way cirrus cloud transmission θr 10″ Receiving view angle q 10 nm Bandwidth of filter Nn ~3.4 × 1019 Sky brightness of moonless night, unit: cps/(m2 × steradian) Nt ~1023 Target brightness, unit: cps/(m2 × steradian)
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Haitao Zhang, Yuqiang Li, Zhulian Li, Xiaoyu Pi, Yongzhang Yang, Rufeng Tang. Space Debris Laser Ranging with range-gate-free Superconducting Nanowire Single-Photon Detector[J]. Journal of the European Optical Society-Rapid Publications, 2023, 19(1): 2023002
Paper Information
Category: Research Articles
Received: Nov. 3, 2022
Accepted: Jan. 10, 2023
Published Online: Aug. 31, 2023
The Author Email: Li Yuqiang (lyq@ynao.ac.cn)
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