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Applied Optics

Applied Optics


  • Vol. 38, Iss. 36 — Dec. 20, 1999
  • pp: 7402–7405

Noncollinear-pumped KTP optical parametric oscillator

Mali Gong, Zhenyu Li, Jingsong Wang, Yanwei Liu, Gang Zhai, Shunsen Shi, Feng Jin, Su Wang, Nan Ma, and Jing Li  »View Author Affiliations

Applied Optics, Vol. 38, Issue 36, pp. 7402-7405 (1999)

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A theoretical analysis and an experimental study are presented on the phase-matching condition of noncollinearly pumped optical parametric oscillators (OPO’s) based on a noncritical phase-matching potassium titanyl phosphate (KTP) OPO. It is shown that noncollinearly pumped, double-pass, singly resonant optical parametric oscillators maintain the advantage of round-trip parametric gain in a collinear pump, since in this case the two generated signal waves are coherent, which results in high conversion efficiency and low pump threshold. With this KTP OPO we achieved 31% energy conversion efficiency from a 1064-nm pump wave to 1572-nm eye-safe output. In addition, because the incident pump beam is not perpendicular to the OPO cavity mirrors and consequently no reflected beam flows back into the pump source, we can avoid employing optical isolators.

© 1999 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers

Original Manuscript: March 29, 1999
Published: December 20, 1999

Mali Gong, Zhenyu Li, Jingsong Wang, Yanwei Liu, Gang Zhai, Shunsen Shi, Feng Jin, Su Wang, Nan Ma, and Jing Li, "Noncollinear-pumped KTP optical parametric oscillator," Appl. Opt. 38, 7402-7405 (1999)

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