Design of broadband polarization-independent multilayer dielectric grating

Junming Chen; Yunxia Jin; Jianda Shao

doi:10.1117/12.2269729

1 August 2017 Design of broadband polarization-independent multilayer dielectric grating

Junming Chen, Yunxia Jin, Jianda Shao

Proceedings Volume 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers; 1033911 (2017) https://doi.org/10.1117/12.2269729
Event: Pacific Rim Laser Damage 2017: Optical Materials for High Power Lasers, 2017, Shanghai, China

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.

Citation Download Citation

Junming Chen, Yunxia Jin, and Jianda Shao "Design of broadband polarization-independent multilayer dielectric grating", Proc. SPIE 10339, Pacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers, 1033911 (1 August 2017); https://doi.org/10.1117/12.2269729

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