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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 5 — Mar. 1, 2014
  • pp: 1314–1317

Efficient RTP-based OPO intracavity pumped by an acousto-optic Q-switched Nd:YVO4 laser

Yanmin Duan, Haiyong Zhu, Yanlin Ye, Dong Zhang, Ge Zhang, and Dingyuan Tang  »View Author Affiliations


Optics Letters, Vol. 39, Issue 5, pp. 1314-1317 (2014)
http://dx.doi.org/10.1364/OL.39.001314


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Abstract

This Letter describes an intracavity pumped optical parametric oscillator (OPO) based on noncritical phase matching RbTiOPO4 (RTP) crystal driven by a laser diode end-pumping acousto-optic Q-switched Nd:YVO4 laser. Simultaneous efficient signal light at 1.6 μm and idler light at 3.1 μm outputs were obtained. At an incident pump power of 10.5 W and a Q-switching pulse repetition frequency of 60 kHz, 1.42 W at center wavelength of about 1619 nm and 0.38 W at 3108 nm were achieved, with the diode to OPO total output conversion efficiency up to 17.1%. The pulse width is about 6.5 ns for the signal light corresponding to the fundamental light at 1064 nm of about 10 ns. The spectral widths of the signal and idler light are narrower than 0.5 and 1.0 nm. The result shows that the RTP crystal is an efficient crystal to generate eye-safe and mid-infrared lights by making full use of noncritical phase matching.

© 2014 Optical Society of America

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:
Lasers and Laser Optics

History
Original Manuscript: December 3, 2013
Revised Manuscript: January 23, 2014
Manuscript Accepted: January 24, 2014
Published: February 27, 2014

Citation
Yanmin Duan, Haiyong Zhu, Yanlin Ye, Dong Zhang, Ge Zhang, and Dingyuan Tang, "Efficient RTP-based OPO intracavity pumped by an acousto-optic Q-switched Nd:YVO4 laser," Opt. Lett. 39, 1314-1317 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-5-1314


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