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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 3 — Feb. 11, 2013
  • pp: 2624–2631

Highly efficient Q-switched laser operation of Yb:Y3Ga5O12 garnet crystal

Junhai Liu, Xueping Tian, Kui Wu, Qibiao Dai, Wenjuan Han, and Huaijin Zhang  »View Author Affiliations

Optics Express, Vol. 21, Issue 3, pp. 2624-2631 (2013)

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We demonstrate, for the first time, passively Q-switched laser operation of Yb:Y3Ga5O12 garnet crystal. An output power of 4.53 W at 1031 nm was generated at a pulse repetition rate of 55.6 kHz, with a Cr4+:YAG crystal acting as saturable absorber whose initial transmission was 97.5%, the corresponding pulse energy, duration and peak power were respectively 81.5 μJ, 28.5 ns and 2.86 kW. Laser pulses at a lower repetition rate of 18.2 kHz were also achieved at 1025 nm while the initial transmission of the Cr4+:YAG crystal was 85.0%, with an output power measured to be 2.56 W, the resulting pulse energy, duration, and peak power being 140.8 μJ, 5.9 ns, and 23.9 kW, respectively.

© 2013 OSA

OCIS Codes
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

Original Manuscript: November 26, 2012
Revised Manuscript: January 19, 2013
Manuscript Accepted: January 20, 2013
Published: January 28, 2013

Junhai Liu, Xueping Tian, Kui Wu, Qibiao Dai, Wenjuan Han, and Huaijin Zhang, "Highly efficient Q-switched laser operation of Yb:Y3Ga5O12 garnet crystal," Opt. Express 21, 2624-2631 (2013)

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