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Proceedings Paper

Design of broadband polarization-independent multilayer dielectric grating
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Paper Abstract

Spectral beam combining (SBC) laser systems are rapidly advancing the output power scaling for high-average-power beam-combined fiber lasers with near-perfect beam quality. Grating as the dispersive element requires high diffraction efficiency (DE) and broad bandwidth (BW) for improving the combined output power scaling. A broad BW high DE polarization-independent reflective multilayer dielectric (MLD) grating is designed. The -1st order DE of the designed grating exceeds 99.84% at 1053nm central wavelength. The BW of the grating with the -1st order DE higher than 99% is up to 99 nm for non-polarized incident light. This MLD grating can be used as a reliable combiner in the SBC system.

Paper Details

Date Published: 1 August 2017
PDF: 5 pages
Proc. SPIE 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers, 1033911 (1 August 2017); doi: 10.1117/12.2269729
Show Author Affiliations
Junming Chen, Shanghai Institute of Optics and Fine Mechanics (China)
Graduate School of Chinese Academy of Sciences (China)
Yunxia Jin, Shanghai Institute of Optics and Fine Mechanics (China)
Jianda Shao, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 10339:
Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers
Jianda Shao; Takahisa Jitsuno; Wolfgang Rudolph, Editor(s)

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