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Proceedings Paper

Design and simulation of optical system based on microlens array for scannerless pulsed laser radar
Author(s): Xiping Cai; Xuelian Leng; Jianbo Liu; Quan Han; Wenjiang Dai
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Paper Abstract

The transmitting and receiving optical system for the scannerless laser radar are designed and simulated in ZEMAX. In the transmitting optical system, in order to increase the operating distance, a beam expander telescope which is used for reducing divergent angle of laser beam is chosen. To make fully use of light, a micro lens array is used as a beam splitter. In the receiving optical system, in order to improve the filling factor of APD array, a micro lens array used to replace the previous usual lens is studied. The simulation shows that the density of the light spot after split was uniform, and demonstrates that the designed array illumination is feasible. In the part of receiving optical system, each beamspot through micro lens array can match perfectly with the APD unit cell, and the receiving efficiency is improved effectively.

Paper Details

Date Published: 5 December 2011
PDF: 6 pages
Proc. SPIE 8197, 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 81970P (5 December 2011); doi: 10.1117/12.903740
Show Author Affiliations
Xiping Cai, Heilongjiang Univ. (China)
Xuelian Leng, Heilongjiang Univ. (China)
Jianbo Liu, Heilongjiang Univ. (China)
Quan Han, Harbin Institute of Technology (China)
Wenjiang Dai, Heilongjiang Univ. (China)


Published in SPIE Proceedings Vol. 8197:
2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Yunlong Sheng; Han-Ping Shieh; Kimio Tatsuno, Editor(s)

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