采用1-GHz正弦波选通的铟镓砷/磷化铟雪崩光电二极管单光子探测器进行1550纳米激光测距。

Laser ranging at 1550 nm with 1-GHz sine-wave gated InGaAs/InP APD single-photon detector.

作者信息

Ren Min, Gu Xiaorong, Liang Yan, Kong Weibin, Wu E, Wu Guang, Zeng Heping

机构信息

State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, China.

出版信息

Opt Express. 2011 Jul 4;19(14):13497-502. doi: 10.1364/OE.19.013497.

DOI:10.1364/OE.19.013497

PMID:21747504

Abstract

We demonstrated a laser ranging system with single photon detection at 1550 nm. The single-photon detector was a 1-GHz sine-wave gated InGaAs/InP avalanche photodiode. In daylight, 8-cm depth resolution was achieved directly by using a time-of-flight approach based on time-correlated single photon counting measurement. This system presented a potential for low energy level and eye-safe laser ranging system in long-range measurement.

摘要

我们展示了一种在1550纳米波长下具备单光子探测功能的激光测距系统。单光子探测器是一个1吉赫兹正弦波门控的铟镓砷/磷化铟雪崩光电二极管。在日光下，通过基于时间相关单光子计数测量的飞行时间方法直接实现了8厘米的深度分辨率。该系统在远程测量中展现出了用于低能级且对眼睛安全的激光测距系统的潜力。