Frequency-modulated continuous-wave dual-frequency LIDAR based on a monolithic integrated two-section DFB laser  

作　　者：Changsheng Wang Yunshan Zhang Jilin Zheng Jin Li Zhenxing Sun Jianqin Shi Lianyan Li Rulei Xiao Tao Fang Xiangfei Chen 王昌盛;张云山;郑吉林;李晋;孙振兴;施建琴;李连艳;肖如磊;方涛;陈向飞(College of Engineering and Applied Sciences,Nanjing University,Nanjing 210093,China;School of Optoelectronic Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210023,China;Photonics Information Technology Laboratory,Institute of Communication Engineering,Army Engineering University of PLA,Nanjing 210007,China)

机构地区：[1]College of Engineering and Applied Sciences,Nanjing University,Nanjing 210093,China [2]School of Optoelectronic Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210023,China [3]Photonics Information Technology Laboratory,Institute of Communication Engineering,Army Engineering University of PLA,Nanjing 210007,China

出　　处：《Chinese Optics Letters》2021年第11期49-53,共5页中国光学快报（英文版）

基　　金：This work was supported in part by the National Key R&D Program of China(No.2018YFA0704402);National Natural Science Foundation of China(Nos.61974165 and 61975075);National Natural Science Foundation of China for the Youth(No.62004105);Science and Technology Project,and Natural Science Foundation of Jiangsu Province(No.BE2019101)。

摘　　要：We demonstrate a high-resolution frequency-modulated continuous-wave dual-frequency LIDAR system based on a monolithic integrated two-section(TS) distributed feedback(DFB) laser. In order to achieve phase locking of the two lasers in the TS-DFB laser, the sideband optical injection locking technique is employed. A high-quality linear frequency-modulated signal is achieved from the TS-DFB laser. Utilizing the proposed LIDAR system, the distance and velocity of a target can be measured accurately. The maximum relative errors of distance and velocity measurement are 1.6% and 3.18%, respectively.

关 键 词：dual-frequency LIDAR integrated two-section DFB laser frequency-modulated continuous wave linear frequency modulation 

分 类 号：TN248[电子电信—物理电子学] TN958.98