Research on laser-induced damage threshold of high-purity silica fiber based on thermal effects

Yingshi Hu; Rundi Zhai; Baonan Jia; Pengfei Lu

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Research on laser-induced damage threshold of high-purity silica fiber based on thermal effects

Yingshi Hu,Rundi Zhai,Baonan Jia,Pengfei Lu *

State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China

*Correspondence author

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Funding: none

Opened online:16 March 2022

Accepted by: none

Citation: Yingshi Hu,Rundi Zhai,Baonan Jia.Research on laser-induced damage threshold of high-purity silica fiber based on thermal effects[OL]. [16 March 2022] http://en.paper.edu.cn/en_releasepaper/content/4756735

In this paper, laser-induced damage threshold (LIDT) is investigated at the wavelength of 1064 nm in the high-purity silica fiber. The finite element method (FEM) is used to study transmission mode, LIDT and temperature distribution of the fiber. We find that in temperature calculation, results of ray optics is similar with that of wave optics. Both the results show that the center of incident surface is more possible to be damaged. We also characterize the tendency of maximum temperature variation with the increase of laser fluences. Our research can provide systematic FEM simulations for the LIDT of fibers.

Keywords:Laser-induced Damage Threshold; Silica fiber; Thermal effect

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