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Chin. Opt. Lett.
 Home  List of Issues    Issue 04 , Vol. 06 , 2008    Application of fiber interferometer in coherent Doppler lidar


Application of fiber interferometer in coherent Doppler lidar
Zongfeng Ma, Chunxi Zhang, Pan Ou, Guangming Luo, and Zhaoyang Zhang
School of Instrument Science and Opto-Electronics Engineering, [Beihang University], Beijing 100083

Chin. Opt. Lett., 2008, 06(04): pp.261-263-3

DOI:
Topic:Remote sensing and sensors
Keywords(OCIS Code): 280.3340  120.7250  030.1670  060.2430  

Abstract
A novel coherent Doppler lidar (CDL) system based on single-mode fiber (SMF) components and instruments is presented to measure the speed of target. A fiber interferometer used in CDL system is reported. This fiber mixer is employed as a coherent receiver to resolve the shifts of signal-to-noise ratio (SNR) and mixing efficiency induced by backscattered field’s wavefront error. For a certain wavelength, the maximum coupling efficiency between signal and SMF is determined by the ratio of pupil diameter to focal length of the coupling lens. The legible interference patterns and spectrum signals show that fiber interferometer is suitable to compensate for amplitude and phase vibrations. This robust coherent receiver can achieve improved CDL system performance with less transmitter power.

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Received:2007/8/8
Accepted:
Posted online:

Get Citation: Zongfeng Ma, Chunxi Zhang, Pan Ou, Guangming Luo, and Zhaoyang Zhang, "Application of fiber interferometer in coherent Doppler lidar," Chin. Opt. Lett. 06(04), 261-263-3(2008)

Note: Z. Ma's e-mail address is mzf706@163.com.



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