Photon-counting laser ranging with InGaAs/InP avalanche photodiode in the passively quenched and 1-GHz sinusoidally gated |
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| Authors: | Jianhua Huang Min Ren Yan LiangZhiyuan Wang Xiaomeng WangWeibin Kong E WuGuang Wu Heping Zeng |
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| Institution: | State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China |
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| Abstract: | We experimentally studied photon-counting laser ranging at 1550 nm using InGaAs/InP avalanche photodiode based single-photon detectors (SPDs). The SPDs operated in the passive quenching and 1-GHz sinusoidal gating Geiger modes, corresponding to continuous and quasi-continuous photon-counting ranging, respectively. Despite that the passively quenched SPD provided relatively high effective detection efficiency, quasi-continuous photon-counting ranging excelled the continuous one with fast acquisition speed and improved depth resolution due to the short deadtime and low timing jitter of the SPD in 1-GHz sinusoidally gated mode. |
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| Keywords: | InGaAs/InP APD Photon-counting ranging Continuous and quasi-continuous modes |
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