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Performance of a spectral beam combining grating with YAG substrate
Author(s): Jiao Xu; Junming Chen; Peng Chen; Yonglu Wang; Yibin Zhang; Fanyu Kong; Hongchao Cao; Yunxia Jin; Jianda Shao
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Paper Abstract

In a previous study, the temperature-rise of a spectral beam combining grating was analyzed theoretically and experimentally. It was concluded that the temperature of a grating can be effectively reduced by increasing the substrate thickness or by using a substrate material with higher thermal conductivity. In this study, yttrium aluminum garnet (YAG) was used as the substrate material to fabricate a spectral beam combining grating. The temperature, distortion, and far-field beam quality of the YAG-substrate-grating were analyzed theoretically and experimentally. It is concluded that, compared with the traditional quartz-substrate-grating, not only can the YAG-substrate-MDG withstand higher power, but the beam quality of the diffraction laser is also better.

Paper Details

Date Published: 8 July 2019
PDF: 6 pages
Proc. SPIE 11064, Tenth International Conference on Thin Film Physics and Applications (TFPA 2019), 1106409 (8 July 2019); doi: 10.1117/12.2540286
Show Author Affiliations
Jiao Xu, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Key Lab. of Materials for High Power Laser (China)
Junming Chen, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Key Lab. of Materials for High Power Laser (China)
Peng Chen, Shanghai Institute of Optics and Fine Mechanics (China)
Univ. of Chinese Academy of Sciences (China)
Key Lab. of Materials for High Power Laser (China)
Yonglu Wang, Shanghai Institute of Optics and Fine Mechanics (China)
Key Lab. Materials for High Power Laser (China)
Yibin Zhang, Shanghai Institute of Optics and Fine Mechanics (China)
Key Lab. of Materials for High Power Laser (China)
Fanyu Kong, Shanghai Institute of Optics and Fine Mechanics (China)
Key Lab. of Materials for High Power Laser (China)
Hongchao Cao, Shanghai Institute of Optics and Fine Mechanics (China)
Key Lab. of Materials for High Power Laser (China)
Yunxia Jin, Shanghai Institute of Optics and Fine Mechanics (China)
Key Lab. of Materials for High Power Laser (China)
Jianda Shao, Shanghai Institute of Optics and Fine Mechanics (China)
Key Lab. of Materials for High Power Laser (China)


Published in SPIE Proceedings Vol. 11064:
Tenth International Conference on Thin Film Physics and Applications (TFPA 2019)
Junhao Chu; Jianda Shao, Editor(s)

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