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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 7 — Apr. 1, 2014
  • pp: 2152–2155

Improved idler beam quality via simultaneous parametric oscillation and signal-to-idler conversion

Shani Sharabi, Gil Porat, and Ady Arie  »View Author Affiliations

Optics Letters, Vol. 39, Issue 7, pp. 2152-2155 (2014)

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We report on an improvement of idler beam quality in a singly resonant optical parametric oscillator (OPO), where the resonant signal is converted to the idler via an additional difference frequency generation (DFG) process. The two processes are phase matched simultaneously by a quasi-periodically poled nonlinear crystal. Whereas back-conversion of the signal and idler to the pump frequency distorts the idler beam in a standard OPO, in a quasi-periodic OPO the DFG process reduces the signal intensity, leading to suppression of back-conversion and, hence, improvement in idler beam quality. Indeed, the experimental results show under the same pump power a significant improvement in idler beam quality for the quasi-periodic OPO (1M22.1) as compared with the standard OPO (3.2M25.3).

© 2014 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(190.4223) Nonlinear optics : Nonlinear wave mixing

ToC Category:
Nonlinear Optics

Original Manuscript: January 2, 2014
Revised Manuscript: February 28, 2014
Manuscript Accepted: March 4, 2014
Published: March 31, 2014

Shani Sharabi, Gil Porat, and Ady Arie, "Improved idler beam quality via simultaneous parametric oscillation and signal-to-idler conversion," Opt. Lett. 39, 2152-2155 (2014)

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