Ranging Capability Analysis for Laser Ranging System Using Superconducting Nanowire Detectors

Li, 薛莉 Xue; Dongsheng, 翟东升 Zhai; Yuqiang, 李语强 Li; Labao, 张蜡宝 Zhang; Zhulian, 李祝莲 Li; Lin, 康琳 Kang; Peiheng, 吴培亨 Wu; Ming, 李明 Li; Yaoheng, 熊耀恒 Xiong

doi:10.3788/aos201636.0304001

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…Among them, the noises from the back-scattering from optics and atmosphere can be filtered out through the range gate. The effective detection probability in a range gate can be described as [40]:…”

Section: Detection Probability Analysis Of Four-pixel Snspd Arraymentioning

confidence: 99%

The facilities and performance of TianQin laser ranging station

Zhang¹,

Gao²,

Li³

et al. 2022

Class. Quantum Grav.

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The TianQin Project is aiming at gravitational wave (GW) detection in space. TianQin GW observatory comprises three satellites orbiting on $1 \times 10^5$ km Earth orbits to form an equilateral-triangle constellation. In order to minimize the variations of arm-length and breathing angle, the satellites must be launched and adjusted precisely into an optimized orbit. Therefore, satellite laser ranging must be used to enhance the precision of satellite’s orbit determination. To develop the capability of satellite laser ranging for TianQin’s orbit, the TianQin Laser Ranging Station has been designed and constructed to perform high-precision laser ranging for TianQin satellites and lunar laser ranging as well. Applying a 1064-nm Nd:YAG laser with 100-Hz repetition frequency, 80 pico-second pulse duration, and $2 \times 2$ array of superconducting nanowire single photon detectors, we have obtained the laser echo signals from the five lunar retro-reflector arrays, and the measurement data have been packaged into 234 normal points, including a few data measured during the full-moon lunar phase. Each NP is calculated from continuous measurement for about ten minutes and the statistical error of the normal points is about 7 mm (1$\sigma$).

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Section: Detection Probability Analysis Of Four-pixel Snspd Arraymentioning

confidence: 99%

The facilities and performance of TianQin laser ranging station

Zhang¹,

Gao²,

Li³

et al. 2022

Class. Quantum Grav.

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show abstract

“…This is because that phases of the seed pulses are locked, resulting in a constant time interval between the output pulses [37]. When applied in field such as laser detecting, repetition rate is one of the crucial parameters to determine the achievable echo photon number or detection resolution, and thus the stable repetition rate can improve the performance of laser detecting systems [38,39].…”

Section: Introductionmentioning

confidence: 99%

54 W nanosecond Yb-doped all-fiber amplifier at ultra-high repetition rate (tens of MHz) based on mode-locked fiber oscillator and single-mode fiber stretcher

Yang¹,

Li²,

Li³

et al. 2021

Laser Phys.

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We report on a nanosecond all-fiber amplifier with repetition rate of tens of MHz. It is based on a passively mode-locked fiber oscillator at 1064 nm, which has a pulse width of 28 ps and repetition rate of 27.7 MHz. The single-mode fiber with length of 8 km is adopted as a fiber stretcher, in which new frequency components are introduced by strong nonlinear effect such as self-phase modulation, resulting in the broadening of spectral bandwidth from 0.4 nm to around 20 nm. The group-velocity dispersion of the 8 km fiber stretcher is −38 ps (nm km) −1, which stretches the pulse duration of the picosecond pulse to 1–7 ns. At the repetition rate of 27.7 MHz, an average power of 54 W is demonstrated with pulse width of 1.3 ns, and 21 W is achieved with pulse width of ∼5 ns, which have optical-to-optical conversion efficiencies of 41.2% and 30.1% respectively. This all-fiber amplifier based on the passively mode-locked fiber oscillator and 8 km single-mode fiber stretcher is capable of delivering nanosecond pulses while maintaining an ultra-high repetition rate of tens of MHz.

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Performance Improvement for Single-Photon LiDAR with Dead Time Selection

Feng¹,

Wang²,

Meng

et al. 2022

International Journal of Aerospace Engineering

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Compared with the impulse LiDAR, the single-photon LiDAR has higher measurement sensitivity in the prominent feature, especially for space-based long-distance imaging. The distance measurement and the detection probability are the critical performance for LiDAR. The ranging of single-photon LiDAR is mainly different from the photon ranging of pulsed LiDAR. Dead time has a significant effect on distance measurement accuracy and detection probability, which are key parameters for detectors when implementing sound control. Therefore, the model of detector dead time, measurement accuracy, and detection probability should be established, and simulation results that meet application requirements should be achieved. Based on the single-photon ranging theory, the dead time, measurement accuracy, and detection probability model of single-photon LiDAR are studied. Furthermore, the systematic simulation of different contrasts is carried out according to the model. The simulation results demonstrate that the model can accurately perform the relationship between dead time and single-photon LiDAR system parameters. The research results can prove the design and verification of single-photon LiDAR dead time.

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Ranging Capability Analysis for Laser Ranging System Using Superconducting Nanowire Detectors

Cited by 4 publications

References 17 publications

The facilities and performance of TianQin laser ranging station

The facilities and performance of TianQin laser ranging station

54 W nanosecond Yb-doped all-fiber amplifier at ultra-high repetition rate (tens of MHz) based on mode-locked fiber oscillator and single-mode fiber stretcher

Performance Improvement for Single-Photon LiDAR with Dead Time Selection

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