Interferometeric output coupling of a continuous-wave optical parametric oscillator

Kavita Devi; S. Chaitanya Kumar; A. Esteban-Martin; M. Ebrahim-Zadeh

doi:10.1117/12.922101

15 May 2012 Interferometeric output coupling of a continuous-wave optical parametric oscillator

Kavita Devi, S. Chaitanya Kumar, A. Esteban-Martin, M. Ebrahim-Zadeh

Proceedings Volume 8434, Nonlinear Optics and Applications VI; 84340E (2012) https://doi.org/10.1117/12.922101
Event: SPIE Photonics Europe, 2012, Brussels, Belgium

Abstract

We demonstrate the use of an antiresonant ring (ARR) interferometer for optimum output coupling in a continuous-wave singly-resonant optical parametric oscillator (SRO). The cw SRO, based on a 50-mm-long MgO:PPLN crystal in a standing-wave cavity, is pumped by cw Ytterbium fiber laser at 1064 nm. The ARR interferometer is integrated into one arm of the SRO cavity. By fine adjustment of the ARR transmission, a continuously variable signal output coupling from 0.8% to 7.3% has been achieved, resulting in an optimum output coupling of ~4.6% for 23.2 W of input pump power. At this output coupling, the SRO provides 2.28 W of signal, together with 2.95 W of idler, for 23.2 W of pump power. We also show that the deployment of the ARR does not lead to any degradation in the output beam quality from the cw SRO. The technique provides a proof-of-principle demonstration to determine the absolute output coupling in cw SRO for which output power and extraction efficiency can be maximized.

Citation Download Citation

Kavita Devi, S. Chaitanya Kumar, A. Esteban-Martin, and M. Ebrahim-Zadeh "Interferometeric output coupling of a continuous-wave optical parametric oscillator", Proc. SPIE 8434, Nonlinear Optics and Applications VI, 84340E (15 May 2012); https://doi.org/10.1117/12.922101

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KEYWORDS

Continuous wave operation

Mirrors

Optical parametric oscillators

Interferometers

Oscillators

Crystals

Fiber lasers

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