Molybdenum Disulfide Film Saturable Absorber Based on Sol-Gel Glass and Spin-Coating Used in High-Power Q-Switched Nd:YAG Laser

Jiang Wang, Zhendong Chen, Yonggang Wang, Taijin Wang, Sicong Liu, Guanghua Chen, Yishan Wang, Wei Ren, Lu Li

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

In recent years, many different kinds of nonlinear optical materials have been applied to passively Q-switched solid-state lasers. However, the average output powers of these lasers are typically limited to 1 W due to the low damage threshold of the materials. In this study, a molybdenum-disulfide-doped glass-composite absorber was synthesized using the sol-gel method and spin-coating technique. The optical damage threshold of the absorber reached 3.17 J/cm2. Saturation intensity, modulation depth, and nonsaturable loss are 9.35 MW/cm2, 8.41%, and 9.14%, respectively. After inserting the absorber into a linear Nd:YAG laser cavity, the maximum average output power (3.22 W) and stable Q-switched laser pulses duration (132 ns) were obtained.

Original languageEnglish
Pages (from-to)9404-9408
Number of pages5
JournalACS Applied Materials and Interfaces
Volume12
Issue number8
DOIs
StatePublished - 26 Feb 2020
Externally publishedYes

Keywords

  • film
  • molybdenum disulfide
  • optical damage threshold
  • Q-switched laser
  • saturable absorbers
  • sol-gel technique

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