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Proceedings Paper

Thin-film polarizer for high power laser system in China
Author(s): Jianda Shao; Kui Yi; Meiping Zhu
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Paper Abstract

Thin-film polarizers are essential components of large laser systems, switching the beam out of the primary laser cavity and/or protecting the system from back-reflected light. The requirements for a polarizer include specific spectral performance, high laser-induced damage resistance and low surface figure deformation. Generally speaking, a polarizer coating has a thicker thickness than a mirror coating, and a narrower bandwidth that fulfills the specific spectral specification, which makes the design and fabrication of polarizer coating challenging. Large aperture (up to ~900 mm in diameter) polarizer coating deposited on both BK7 and fused silica substrates with p-polarized transmittance higher than 98%, s-polarized reflectance higher than 99% at 1053 nm, and can tolerance a fluence higher than 17 J/cm2 (9 ns) at 1053 nm has been achieved.

Paper Details

Date Published: 22 July 2016
PDF: 5 pages
Proc. SPIE 9983, Pacific Rim Laser Damage 2016: Optical Materials for High-Power Lasers, 998308 (22 July 2016); doi: 10.1117/12.2239780
Show Author Affiliations
Jianda Shao, Shanghai Institute of Optics and Fine Mechanics (China)
Kui Yi, Shanghai Institute of Optics and Fine Mechanics (China)
Meiping Zhu, Shanghai Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 9983:
Pacific Rim Laser Damage 2016: Optical Materials for High-Power Lasers
Takahisa Jitsuno; Jianda Shao; Wolfgang Rudolph, Editor(s)

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