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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 12 — Jun. 15, 2007
  • pp: 1728–1730

Efficient passively Q-switched laser operation of Yb in the disordered NaGd ( WO 4 ) 2 crystal host

Junhai Liu, Valentin Petrov, Huaijin Zhang, Jiyang Wang, and Minhua Jiang  »View Author Affiliations


Optics Letters, Vol. 32, Issue 12, pp. 1728-1730 (2007)
http://dx.doi.org/10.1364/OL.32.001728


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Abstract

Efficient passively Q-switched laser operation of the disordered Yb : NaGd ( WO 4 ) 2 crystal is demonstrated for the first time to our knowledge with a Cr 4 + : YAG saturable absorber by diode end pumping. 2.05 W of average output power at a pulse repetition frequency of 13.3 kHz was obtained at an absorbed pump power of 7.7 W , with a slope efficiency of 40%. The energy and duration of the generated laser pulse were 154 μ J and 33 ns , respectively, corresponding to a peak power of 4.67 kW . In continuous-wave operation, the Yb : NaGd ( WO 4 ) 2 laser yielded an output power of 5.5 W with an optical–optical efficiency of 51%.

© 2007 Optical Society of America

OCIS Codes
(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

History
Original Manuscript: March 21, 2007
Manuscript Accepted: April 11, 2007
Published: June 6, 2007

Citation
Junhai Liu, Valentin Petrov, Huaijin Zhang, Jiyang Wang, and Minhua Jiang, "Efficient passively Q-switched laser operation of Yb in the disordered NaGd(WO4)2 crystal host," Opt. Lett. 32, 1728-1730 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-12-1728

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