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Proceedings Paper

Polarized high-spectral-resolution lidar based on field-widened Michelson interferometer
Author(s): Dong Liu; Zhongtao Cheng; Jing Luo; Yongying Yang; Yupeng Zhang; Yudi Zhou; Jian Bai; Chong Liu; Yibing Shen
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Paper Abstract

A polarized high-spectral-resolution lidar (HSRL) based on a field-widened Michelson interferometer (FWMI) is developed in Zhejiang University, China, which is intended to profile various atmospheric aerosol optical properties simultaneously, such as the backscatter coefficient, the extinction coefficient, depolarization ratio, lidar ratio, etc. Due to the enlarged field-of-view (FOV) of the FWMI spectroscopic filter compared with the conventional Fabry-Perot interferometer (FPI) filter, we can expand the angular acceptable angle of the HSRL system to about 1 degree yet without any degradation of the spectral discrimination, enhancing the photon efficiency considerably. In this paper, we describe the developed FWMI-based polarized HSRL system comprehensively. The instrument configuration parameters and overall systematic structure are first presented. Then the FWMI subsystem, as the core apparatus of this HSRL, is particularly focused on. Instrumental calibration approach and the data retrieval are also discussed in detail. To our knowledge, this HSRL system is the first new generation of lidar which employs the FWMI spectroscopic filter in China, and great potential will be shown with the gradually improved engineering design in near future.

Paper Details

Date Published: 13 May 2016
PDF: 8 pages
Proc. SPIE 9832, Laser Radar Technology and Applications XXI, 98320Z (13 May 2016); doi: 10.1117/12.2223735
Show Author Affiliations
Dong Liu, Zhejiang Univ. (China)
Zhongtao Cheng, Zhejiang Univ. (China)
Jing Luo, Zhejiang Univ. (China)
Yongying Yang, Zhejiang Univ. (China)
Yupeng Zhang, Zhejiang Univ. (China)
Yudi Zhou, Zhejiang Univ. (China)
Jian Bai, Zhejiang Univ. (China)
Chong Liu, Zhejiang Univ (China)
Yibing Shen, Zhejiang Univ. (China)

Published in SPIE Proceedings Vol. 9832:
Laser Radar Technology and Applications XXI
Monte D. Turner; Gary W. Kamerman, Editor(s)

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