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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 22 — Nov. 15, 2007
  • pp: 3266–3268

Efficient passively Q-switched Yb : LuAG microchip laser

Jun Dong, Ken-ichi Ueda, and Alexander A. Kaminskii  »View Author Affiliations

Optics Letters, Vol. 32, Issue 22, pp. 3266-3268 (2007)

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An efficient passively Q-switched Yb : LuAG microchip laser with Cr 4 + : YAG as saturable absorber was demonstrated for the first time to our knowledge. Slope efficiencies of 40% and 28% were measured for the initial transmission of Cr 4 + : YAG , T 0 = 95 % and 90%, respectively. Laser pulses with a pulse energy of 19 μ J and a pulse width of 610 ps at the repetition rate of 12.8 kHz were achieved for T 0 = 90 % ; the corresponding peak power of over 31 kW was obtained. The lasers oscillated at two or three longitudinal modes owing to the broad emission spectra of Yb : LuAG and mode selection by Cr 4 + : YAG thin plate acting as an intracavity etalon.

© 2007 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers

ToC Category:
Lasers and Laser Optics

Original Manuscript: August 24, 2007
Revised Manuscript: October 8, 2007
Manuscript Accepted: October 9, 2007
Published: November 2, 2007

Jun Dong, Ken-ichi Ueda, and Alexander A. Kaminskii, "Efficient passively Q-switched Yb:LuAG microchip laser," Opt. Lett. 32, 3266-3268 (2007)

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