Development of a high power Q-switched laser diode-pumped Nd:YAG master oscillator power amplifier (MOPA) laser with high repetition rate

Z. X. Bai*, X. Q. Gao, L. Y. Chen, J. Jiang, M. Chen, G. Li

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

A high power Q-switched all solid state master oscillator power amplifier (MOPA) laser system is reported in this paper, which produces linearly polarized light 89 W at 500 Hz in 5.5 ns (FWHM). Bidirectional voltage supplied electro-optic Q-switched technology was used in oscillator stage, which obtained adjustable pulse width from 5.5 to 21 ns in 1064 nm. Through multistage Nd:YAG amplifiers at the pulse width of 5.5 ns, the oscillator laser power was scaled up to 89 W and the corresponding peak power reached 32.3 MW with power instability less than 0.51%.

Original languageEnglish
Pages (from-to)233-246
Number of pages14
JournalLasers in Engineering
Volume28
Issue number3-4
Publication statusPublished - 2014
Externally publishedYes

Keywords

  • High repetition rate
  • Laser diode-side-pumped
  • Master oscillator power amplifier (MOPA)
  • Nd:YAG laser
  • Q-switched
  • Thermal effect

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