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A Laser Ranging System Using Chaotic Light

Tong ZHAO(赵彤), Bing-jie WANG(王冰洁),An-bang WANG(王安帮),Yun-cai WANG(王云才)

 

(Institute of Optoelectronic Engineering, Department of Physics and Optoelectronics Taiyuan University of Technology, Taiyuan 030024, China)

 

Abstract-A novel laser ranging system using chaotic laser as probe light source is designed and presented. The system is made up of five components: chaotic light source, transmitter, receiver, data acquisition unit and data processing unit. Chaotic light is generated by an 808 nm, 500 mW, single-mode laser diode with optical feedback cavity.  Single target detection and multi-target detection are experimentally realized by correlating the chaotic reference light and the reflected or backscattered probe light. The performances, including the resolution of 18 cm within at least 130 m range and the sensitivity of -20 dB, are achieved and analyzed.

 

Key words-laser ranging; chaotic laser; optical feedback; laser diode

 

Manuscript Number: 1674-8042(2011)04-0398-04

 

doi: 10.3969/j.issn.1674-8042.2011.04.022

 

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