In optical parametric oscillators, the line shape of the pump resonance becomes strongly distorted above the oscillation threshold. We model this behavior and find good agreement with the literature data and our original experimental data. A fit of the model to the data provides valuable information about the loss mechanisms in the parametric process. In particular, the modal properties of the parametric waves can be gained, which is important for both classical and quantum aspects of optical parametric oscillation.
© 2013 Optical Society of America
Original Manuscript: June 21, 2013
Revised Manuscript: July 30, 2013
Manuscript Accepted: July 30, 2013
Published: August 22, 2013
I. Breunig, B. Sturman, A. Bückle, C. S. Werner, and K. Buse, "Structure of pump resonances during optical parametric oscillation in whispering gallery resonators," Opt. Lett. 38, 3316-3318 (2013)