Share Email Print
cover

Proceedings Paper

Laser beam shaping design based on micromirror array
Author(s): Han Fang; Bida Su; Jiaguo Liu; Xiaoli Fan; Wang Jing
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

In the practical application of the laser, it is necessary to use the laser beam shaping technology to shape the output beam of laser device to the uniform light intensity distribution. The shaping divergent optical system of compound eye integrator way is composed of beam expanding mirror group and lens array. Its working principle is to expand the output laser to a certain size of caliber, and then divide the beam with lens array into multiple sub beam, where the lens unit of lens array can control the divergence angle of sub beam through the design of focal length, with mutual superposition of the sub beam in far field, to make up for the nonuniformity of beam, so that the radiant exitance on the radiated surface may become uniform. In this paper, we use a reflective microlens array to realize the laser beam shaping. By through of the practical optical path model established, the ray tracing is carried out and the simulation results for single-mode Gaussian beam with noise circumstance is provided. The analysis results show that the laser beam shaping under different inputs can be effectively realized by use of microlens array. All the energy is within the signal window, with a high energy efficiency of more than 90%; The measured surface has a better uniformity, and the uniformity is better than 99.5% at 150m.

Paper Details

Date Published: 25 October 2017
PDF: 5 pages
Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 1045723 (25 October 2017); doi: 10.1117/12.2284764
Show Author Affiliations
Han Fang, Science and Technology on Optical Radiation Lab. (China)
State Key Lab. of Pulsed Power Laser Technology (China)
Bida Su, Science and Technology on Optical Radiation Lab. (China)
Beijing Institute of Technology (China)
State Key Lab. of Pulsed Power Laser Technology (China)
Jiaguo Liu, Science and Technology on Optical Radiation Lab. (China)
Xiaoli Fan, Science and Technology on Optical Radiation Lab. (China)
Wang Jing, Science and Technology on Optical Radiation Lab. (China)


Published in SPIE Proceedings Vol. 10457:
AOPC 2017: Laser Components, Systems, and Applications
Shibin Jiang; Lijun Wang; Lan Jiang; Long Zhang, Editor(s)

© SPIE. Terms of Use
Back to Top