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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry Van Driel
  • Vol. 26, Iss. 5 — May. 1, 2009
  • pp: 1146–1150

Pulse-width reduction in a diode-pumped doubly Q-switched Y V O 4 Nd : Y V O 4 laser with electro-optic modulator and GaAs saturable absorber

Tao Li, Shengzhi Zhao, Zhuang Zhuo, Kejian Yang, Guiqiu Li, and Dechun Li  »View Author Affiliations


JOSA B, Vol. 26, Issue 5, pp. 1146-1150 (2009)
http://dx.doi.org/10.1364/JOSAB.26.001146


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Abstract

By using both a β - Ba B 2 O 4 (BBO) electro-optic (EO) modulator and a GaAs saturable absorber, a laser-diode (LD) end-pumped doubly Q-switched Y V O 4 Nd : Y V O 4 laser is realized. A symmetric factor is defined to describe the temporal symmetry of output pulses. At 20 W incident pump power, a symmetric factor of 1.04 is obtained by the doubly Q-switched laser with 2.5 ns pulse width and 300 kW peak power. The experimental results show that the double Q-switching can generate a symmetric and shorter pulse with higher peak power in comparison with the single EO Q-switching. In order to explain these results, a rate equation model has been developed, and it leads to good agreement with the experimental data.

© 2009 Optical Society of America

OCIS Codes
(140.3430) Lasers and laser optics : Laser theory
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched
(230.2090) Optical devices : Electro-optical devices

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 11, 2008
Revised Manuscript: March 18, 2009
Manuscript Accepted: April 6, 2009
Published: April 30, 2009

Citation
Tao Li, Shengzhi Zhao, Zhuang Zhuo, Kejian Yang, Guiqiu Li, and Dechun Li, "Pulse-width reduction in a diode-pumped doubly Q-switched YVO4/Nd:YVO4 laser with electro-optic modulator and GaAs saturable absorber," J. Opt. Soc. Am. B 26, 1146-1150 (2009)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-26-5-1146

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