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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Editor: Henry M. Van Driel
  • Vol. 24, Iss. 9 — Sep. 1, 2007
  • pp: 2521–2525

Pulse compression and threshold decrease in high- repetition-rate doubly Q-switched intracavity optical parametric oscillator

Jing Wang, Shengzhi Zhao, Kejian Yang, Lei Dong, Guiqiu Li, Dechun Li, Ming Li, Jing An, and Wenchao Qiao  »View Author Affiliations

JOSA B, Vol. 24, Issue 9, pp. 2521-2525 (2007)

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By using Rb Ti O P O 4 (RTP) crystals as an electro-optic (EO) modulator and Cr 4 + : YAG saturable absorber as a passive Q switch, a high repetition rate doubly Q-switched intracavity optical parametric oscillator (IOPO) is realized. In comparison to an EO Q-switched IOPO, the lower threshold energy, the higher output energy, the narrower pulse width, and the higher conversion efficiency from the doubly Q-switched IOPO can be obtained. By considering the gradual loss from the delayed switched time of the EO switch, the coupled rate equations of doubly Q-switched IOPO under the assumption of the uniform distributions of the intracavity photon densities are given, and the numerical solution of the equations fits the experimental data well.

© 2007 Optical Society of America

OCIS Codes
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers

ToC Category:
Nonlinear Optics

Original Manuscript: February 5, 2007
Revised Manuscript: April 25, 2007
Manuscript Accepted: July 9, 2007
Published: August 31, 2007

Jing Wang, Shengzhi Zhao, Kejian Yang, Lei Dong, Guiqiu Li, Dechun Li, Ming Li, Jing An, and Wenchao Qiao, "Pulse compression and threshold decrease in high- repetition-rate doubly Q-switched intracavity optical parametric oscillator," J. Opt. Soc. Am. B 24, 2521-2525 (2007)

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