10 June 2006 AOM and lock-in amplifier lidar-radar system for distance measurement
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Proceedings Volume 6344, Advanced Laser Technologies 2005; 63443A (2006) https://doi.org/10.1117/12.694444
Event: Advanced Laser Technologies 2005, 2005, Tianjin, China
The lidar-radar architecture has been developed and used in detection and identification of targets in many domains. Based on the single frequency monothilic NPRO (Nonplanar Ring Oscillator) and AOM (Acousto-Optical Modulator), a lidar-radar conceptive system for distance measurement has been constructed and investigated. The system consists of mainly three parts: the beat frequency laser source made up of NPRO and AOM, the transmitting and reflection collecting system and the lock-in amplifier signal processing unit. Then the distance measurement has been demonstrated using a 700-meter long single-mode fiber. In order to calculate unambiguously the actual distance, two synthetic frequencies have been introduced in turn. At last, using the lidar-radar setup, the displacement and velocity of a moving target which is mounted on a precise motorized optical bench have been displayed.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Lei Li, Lei Li, Suhui Yang, Suhui Yang, Xinpeng Sun, Xinpeng Sun, Lan Gao, Lan Gao, Liping Tao, Liping Tao, Changming Zhao, Changming Zhao, } "AOM and lock-in amplifier lidar-radar system for distance measurement", Proc. SPIE 6344, Advanced Laser Technologies 2005, 63443A (10 June 2006); doi: 10.1117/12.694444; https://doi.org/10.1117/12.694444

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