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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 37, Iss. 11 — Jun. 1, 2012
  • pp: 1986–1988

520 mJ langasite electro-optically Q-switched Cr, Tm, Ho:YAG laser

Li Wang, Xuwu Cai, Jingwei Yang, Xianyou Wu, Haihe Jiang, and Jiyang Wang  »View Author Affiliations

Optics Letters, Vol. 37, Issue 11, pp. 1986-1988 (2012)

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A flash lamp pumped 2.09 μm Cr, Tm, Ho:YAG laser utilizing a self-grown La3Ga5SiO14 crystal as the electro-optic Q-switch generator is proposed and demonstrated for the first time. Operating at 3 Hz repetition rate, 520 mJ pulse energy with 35 ns pulse width is achieved by optimizing the Q-switch delay time and compensating for the thermal depolarization with a quarter-wave plate. The corresponding peak power is 14.86 MW, and the Q-switched-to-normal-mode energy extraction efficiency is 66.3%. To our knowledge, this Q-switched giant pulse is the best result reported to date in 2.09 μm laser resonator.

© 2012 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state

ToC Category:
Lasers and Laser Optics

Original Manuscript: February 20, 2012
Revised Manuscript: April 9, 2012
Manuscript Accepted: April 9, 2012
Published: May 30, 2012

Li Wang, Xuwu Cai, Jingwei Yang, Xianyou Wu, Haihe Jiang, and Jiyang Wang, "520 mJ langasite electro-optically Q-switched Cr, Tm, Ho:YAG laser," Opt. Lett. 37, 1986-1988 (2012)

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