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Proceedings Paper

Annular polishing of large-aperture Nd-doped metaphosphate glasses
Author(s): Haiyang Shan; Xueke Xu; Hongbo He; Fulin Wu; Kui Yi; Jianda Shao
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Paper Abstract

Large-aperture Nd-doped metaphosphate glasses are used in high-power/high-energy laser facilities. High transmission wave front accuracy of Nd-doped metaphosphate glasses is required to decrease beam distortion, which affects the focus ability and damages optical components. Elliptical shape astigmatism of the transmission wave front easily occurs when Nd-doped metaphosphate glasses are detected and utilized at Brewster incident angle compared with zero angle. The astigmatism is difficult to decrease for precision annular polishing because the surface profile adjustment of the polishing pitch plane has low accuracy. Non-uniform removal at different velocity rates between the pitch plane and Nd-doped metaphosphate glasses can be used to eliminate horizontal elliptical-shaped astigmatism. The improved process contributes to the production of high-efficiency Nd-doped metaphosphate glasses.

Paper Details

Date Published: 9 July 2013
PDF: 7 pages
Proc. SPIE 8786, Pacific Rim Laser Damage 2013: Optical Materials for High Power Lasers, 87861S (9 July 2013); doi: 10.1117/12.2019760
Show Author Affiliations
Haiyang Shan, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Xueke Xu, Shanghai Institute of Optics and Fine Mechanics (China)
Hongbo He, Shanghai Institute of Optics and Fine Mechanics (China)
Fulin Wu, Shanghai Institute of Optics and Fine Mechanics (China)
Kui Yi, Shanghai Institute of Optics and Fine Mechanics (China)
Jianda Shao, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 8786:
Pacific Rim Laser Damage 2013: Optical Materials for High Power Lasers
Jianda Shao; Takahisa Jitsuno; Wolfgang Rudolph, Editor(s)

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