15 mJ single-frequency Ho:YAG laser resonantly pumped by a 1.9 μm laser diode

Q. X. Na, C. Q. Gao, Q. Wang, Y. X. Zhang, M. W. Gao, Q. Ye, Y. Li

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

A 2.09 μm injection-seeded single-frequency Ho:YAG laser resonantly pumped by a 1.91 μm laser diode is demonstrated for the first time. The seed laser is a continuous wave (CW) Ho:YAG non-planar ring oscillator. 15.15 mJ single-frequency output energy is obtained from the injection-seeded Q-switched Ho:YAG laser, with a pulse repetition rate of 200 Hz and a pulse width of 109 ns. The half-width of the pulse spectrum is measured to be 4.19 MHz by using the heterodyne technique. The fluctuation of the center frequency of the single-frequency pulses is 1.52 MHz (root mean square (RMS)) in 1 h.

Original languageEnglish
Article number095003
JournalLaser Physics Letters
Volume13
Issue number9
DOIs
Publication statusPublished - Sept 2016

Keywords

  • Ho:YAG laser
  • Q-switch
  • injection-seed
  • solid-state lasers

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