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Non-Lorentzian pump resonances in whispering gallery optical parametric oscillators

: Breunig, Ingo; Bückle, Anni; Werner, Christoph S.; Buse, Karsten


Kudryashov, A.V. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Laser Resonators, Microresonators, and Beam Control XVI : 4-6 February 2014, San Francisco, CA, USA
Bellingham, WA: SPIE, 2014 (Proceedings of SPIE 8960)
ISBN: 978-0-8194-9873-1
Paper 896007
Conference "Laser Resonators, Microresonators, and Beam Control" <16, 2014, San Francisco/Calif.>
Conference Paper
Fraunhofer IPM ()
nonlinear optics; optical parametric oscillators; monolithic resonators

Whispering gallery optical parametric oscillators are millimeter-sized monolithic sources for tunable coherent light. Several experiments have revealed that during optical parametric oscillation the pump resonance strongly differs from a Lorentzian shape. We theoretically and experimentally analyze these line-shape distortions. It turns out that the line shape of the pump resonance strongly depends on the coupling strength of the pump light and on the loss ratio between generated light and pump light. The line-widths, i.e. the losses, for the light generated by the parametric process can be deduced without measuring them directly.