A design with high spectral efficiency and high laser induced damage threshold for 1064nm partially reflective coatings

Houkun Liu; Hongfei Jiao; Jinlong Zhang; Xinbin Cheng; Zhanshan Wang

doi:10.1117/12.2585460

4 December 2020 A design with high spectral efficiency and high laser induced damage threshold for 1064nm partially reflective coatings

Houkun Liu, Hongfei Jiao, Jinlong Zhang, Xinbin Cheng, Zhanshan Wang

Author Affiliations +

Proceedings Volume 11617, International Conference on Optoelectronic and Microelectronic Technology and Application; 116173G (2020) https://doi.org/10.1117/12.2585460
Event: International Conference on Optoelectronic and Microelectronic Technology and Application, 2020, Nanjing, China

Abstract

The 1064nm partially reflective coatings has been widely used in high-power laser optical components. The current research status on 1064nm partially reflective coatings is that it is difficult to balance the electric field and spectral tolerance. In order to satisfy both high spectral efficiency and high laser induced damage threshold, we use HfO₂ and SiO₂ to design and fabricate three kinds of coatings with different electric field distributions. This paper measured the actual spectra of the three coatings and obtained high spectral efficiency. The damage threshold of the coatings is measured by the damage threshold test platform built by the laboratory. The final research results show that when the matching layer is on the side of the substrate, the electric field is lower and the damage threshold of the coatings is higher.

Citation Download Citation

Houkun Liu, Hongfei Jiao, Jinlong Zhang, Xinbin Cheng, and Zhanshan Wang "A design with high spectral efficiency and high laser induced damage threshold for 1064nm partially reflective coatings", Proc. SPIE 11617, International Conference on Optoelectronic and Microelectronic Technology and Application, 116173G (4 December 2020); https://doi.org/10.1117/12.2585460

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