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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 17 — Aug. 13, 2012
  • pp: 19313–19321

Antiresonant ring output-coupled continuous-wave optical parametric oscillator

Kavita Devi, S. Chaitanya Kumar, A. Esteban-Martin, and M. Ebrahim-Zadeh  »View Author Affiliations

Optics Express, Vol. 20, Issue 17, pp. 19313-19321 (2012)

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We demonstrate the successful deployment of an antiresonant ring (ARR) interferometer for the attainment of optimum output coupling in a continuous-wave (cw) optical parametric oscillator (OPO). The cw OPO, configured as a singly-resonant oscillator (SRO), is based on a 50-mm-long MgO:PPLN crystal and pumped by cw Ytterbium-fiber laser at 1064 nm, with the ARR interferometer integrated into one arm of the standing-wave cavity. By fine adjustment of the ARR transmission, a continuously variable signal output coupling from 0.8% to 7.3% has been achieved, providing optimum output coupling for signal and optimum power extraction for the idler, at different input pumping levels. The experimental results are compared with theoretical calculations for conventional output-coupled cw SRO, and the study shows that by reducing the insertion loss of the ARR elements, the performance of the ARR-coupled cw SRO can be further enhanced. We also show that the use of the ARR does not lead to any degradation in the cw SRO output beam quality. The proof-of-principle demonstration confirms the effectiveness of the technique for continuous, in situ, and fine control of output coupling in cw OPOs to achieve maximum output power at any arbitrary pumping level above threshold.

© 2012 OSA

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers
(140.3325) Lasers and laser optics : Laser coupling

ToC Category:
Lasers and Laser Optics

Original Manuscript: June 22, 2012
Revised Manuscript: August 1, 2012
Manuscript Accepted: August 2, 2012
Published: August 8, 2012

Kavita Devi, S. Chaitanya Kumar, A. Esteban-Martin, and M. Ebrahim-Zadeh, "Antiresonant ring output-coupled continuous-wave optical parametric oscillator," Opt. Express 20, 19313-19321 (2012)

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