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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 23 — Nov. 9, 2009
  • pp: 20669–20674

High-efficiency intracavity Nd:YVO4\KTA optical parametric oscillator with 3.6 W output power at 1.53 μm

Haiyong Zhu, Ge Zhang, Huibin Chen, Chenghui Huang, Yong Wei, Yanmin Duan, Yidong Huang, Hongyan Wang, and Gang Qiu  »View Author Affiliations

Optics Express, Vol. 17, Issue 23, pp. 20669-20674 (2009)

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An efficient intracavity KTA optical parametric oscillator (OPO) driven by diode-end-pumped acousto-optical Q-switched Nd:YVO4 laser is demonstrated. The mode mismatch between fundamental cavity and OPO cavity caused by the thermal lens effect in Nd:YVO4 crystal as the pump power increased was studied. To lessen mode mismatch, a thermal lens-like cavity mirror made of plane BK7 glass induced by idler absorption was introduced into the OPO cavity. Under a diode pump power of 20 W, a maximum 1535nm light output power of 3.6 W was achieved at the pulse repetition rate of 60 kHz, corresponding to a diode-to-signal conversion efficiency of 18%. This is the highest efficiency reported for eye-safe laser based on intracavity OPO.

© 2009 OSA

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3540) Lasers and laser optics : Lasers, Q-switched
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes

ToC Category:
Nonlinear Optics

Original Manuscript: October 15, 2009
Revised Manuscript: October 16, 2009
Manuscript Accepted: October 17, 2009
Published: October 26, 2009

Haiyong Zhu, Ge Zhang, Huibin Chen, Chenghui Huang, Yong Wei, Yanmin Duan, Yidong Huang, Hongyan Wang, and Gang Qiu, "High-efficiency intracavity Nd:YVO4\KTA optical parametric oscillator with 3.6 W output power at 1.53 μm," Opt. Express 17, 20669-20674 (2009)

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