A 1550-nm all-fiber monostatic lidar system based on linear chirp amplitude modulation and heterodyne detection for the measurements of range and velocity is presented. The signal processing method is given, after which the relationship between the peak frequency values in the final signal spectrum, the target's range, and the line-of-sight velocity is obtained in the presence of the fiber end-face-reflected signal plaguing many monostatic lidar systems. The range of an electric fan as well as the line-of-sight fan speed of different levels is tested. This proposed system has a potential application for the space-borne landing system.
© 2010 Chinese Optics Letters
(040.2840) Detectors : Heterodyne
(280.3340) Remote sensing and sensors : Laser Doppler velocimetry
(280.3400) Remote sensing and sensors : Laser range finder
(280.3640) Remote sensing and sensors : Lidar
Fu Yang, Yan He, Jianhua Shang, and Weibiao Chen, "Development of an all-fiber heterodyne lidar for range and velocity measurements," Chin. Opt. Lett. 8, 713-716 (2010)