Design and fabrication of a high-precision cylinder beam expander

Yong-hong Zhang; Hong Yan; Bing Xie; Jian-ming Li; Zhong-xiang Luo

doi:10.1117/12.2317584

5 March 2018 Design and fabrication of a high-precision cylinder beam expander

Yong-hong Zhang, Hong Yan, Bing Xie, Jian-ming Li, Zhong-xiang Luo

Proceedings Volume 10710, Young Scientists Forum 2017; 107103V (2018) https://doi.org/10.1117/12.2317584
Event: Young Scientists Forum 2017, 2017, Shanghai, China

Abstract

In order to compress the beam divergence angle and reduce the energy density, beam expansion system is widely used to expand the beam in laser system. Cylinder beam expander belongs to one-dimension expander, which expands the laser beam in only one direction (X direction or Y direction), a refraction cylinder expander whose beam diameter is 180mm×120mm and magnitude ratio is 12 is designed in this paper, the working wavelength is 1058nm. To solve the problem of inequality of the working wavelength and the testing wavelength, compensation method of using parallel plate to test the system aberration is proposed. By rough grinding、precision grinding、polish and the system grinding, the final system aberration is 0.24λ(peak-valley value)

Citation Download Citation

Yong-hong Zhang, Hong Yan, Bing Xie, Jian-ming Li, and Zhong-xiang Luo "Design and fabrication of a high-precision cylinder beam expander", Proc. SPIE 10710, Young Scientists Forum 2017, 107103V (5 March 2018); https://doi.org/10.1117/12.2317584

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