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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: G. I. Stegeman
  • Vol. 23, Iss. 4 — Apr. 1, 2006
  • pp: 671–675

Diode-pumped, passively Q-switched Nd : Gd V O 4 green laser with periodically poled KTP and Cr 4 + : YAG saturable absorber

Kejian Yang, Shengzhi Zhao, Guiqiu Li, and Jing Zou  »View Author Affiliations

JOSA B, Vol. 23, Issue 4, pp. 671-675 (2006)

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With a laser diode as the pump source, a passive Q switching of an intracavity frequency-doubling Nd : Gd V O 4 green laser with periodically poled KTP has been realized with a Cr 4 + : YAG saturable absorber. The dependences of the average output power, pulse width, pulse repetition rate, pulse energy, and peak power on incident pump power at different small-signal transmissions of Cr 4 + : YAG are measured. The rate equations considering the Gaussian spatial distribution of the intracavity photon density and the effects of the amplified spontaneous emission (ASE) are presented to simulate the Q-switching process of this laser, and the numerical solutions are in agreement with the experimental results. We have further discussed the influences of the ASE parameter ξ on the laser performance.

© 2006 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(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
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4400) Nonlinear optics : Nonlinear optics, materials

ToC Category:
Lasers and Laser Optics

Original Manuscript: May 10, 2005
Revised Manuscript: October 11, 2005
Manuscript Accepted: October 20, 2005

Kejian Yang, Shengzhi Zhao, Guiqiu Li, and Jing Zou, "Diode-pumped, passively Q-switched Nd:GdVO4 green laser with periodically poled KTP and Cr4+:YAG saturable absorber," J. Opt. Soc. Am. B 23, 671-675 (2006)

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