Design and simulation of optical system based on microlens array for scannerless pulsed laser radar

Xiping Cai; Xuelian Leng; Jianbo Liu; Quan Han; Wenjiang Dai

doi:10.1117/12.903740

5 December 2011 Design and simulation of optical system based on microlens array for scannerless pulsed laser radar

Xiping Cai, Xuelian Leng, Jianbo Liu, Quan Han, Wenjiang Dai

Proceedings Volume 8197, 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments; 81970P (2011) https://doi.org/10.1117/12.903740
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

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.

Citation Download Citation

Xiping Cai, Xuelian Leng, Jianbo Liu, Quan Han, and Wenjiang Dai "Design and simulation of optical system based on microlens array for scannerless pulsed laser radar", Proc. SPIE 8197, 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 81970P (5 December 2011); https://doi.org/10.1117/12.903740

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