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Load-controlled polarization of large-aperture optics in high-power laser amplifier

  • Menjiya Tian
  • , Bowu Liua
  • , Dongya Chu
  • , Hui Wang*
  • *Corresponding author for this work
  • Tsinghua University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In the amplifier of the large-aperture laser facility, the laser slab will have a depolarization effect in part areas due to the mounting stress and thermal stress. The depolarization effect will degrade the polarization state of the laser so that it cannot meet the design requirements, thereby affecting the efficiency of the whole facility. At the same time, depolarization will also cause low isolation in the facility and cause unpredictable damage to the optics. Aiming at the problem of depolarization, this article proposes a method to adjust the stress distribution of the laser slab by mounting load, and then adjust the polarization state of the slab, so that the stress distribution of the glass is uniform, and the position of the glass depolarization is controlled as far from the four corners as possible and minimize the influence of depolarization effect on the laser.

Original languageEnglish
Title of host publicationFourth International Symposium on High Power Laser Science and Engineering, HPLSE 2021
EditorsJianqiang Zhu
PublisherSPIE
ISBN (Electronic)9781510645424
DOIs
StatePublished - 2021
Externally publishedYes
Event4th International Symposium on High Power Laser Science and Engineering, HPLSE 2021 - Suzhou, China
Duration: 12 Apr 202126 Apr 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11849
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference4th International Symposium on High Power Laser Science and Engineering, HPLSE 2021
Country/TerritoryChina
CitySuzhou
Period12/04/2126/04/21

Keywords

  • Amplifier
  • Assembly
  • Depolarization
  • Laser slab
  • Opto-mechanics

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