Effects in High-Q Whispering Gallery Mode Resonators: Modelling and Applications

Stephane Trebaol (1) , Alphonse Rasoloniaina (1) , Yannick Dumeige (1) , Patrice Féron (1)

1 FOTON - Fonctions Optiques pour les Technologies de l'informatiON

We analyse the transient transmission response of a high quality (Q) factor whispering gallery mode resonator when the probe laser frequency is rapidly swept across the resonance. The detailed comparison with a simple numerical linear model allows the coupling regime and the strength of the intracavity Rayleigh scattering to be measured. By including thermal nonlinearities in the model we show here that it can be possible to deduce the power launched in the high-Q mode by using this simple cavity ring-down spectroscopy technique.

Keywords: Whispering Gallery Mode resonator; cavity ring-down spectroscopy; thermal optical nonlinearities; Rayleigh scattering; coupled resonators

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]

Stephane Trebaol, Alphonse Rasoloniaina, Yannick Dumeige, Patrice Féron. Effects in High-Q Whispering Gallery Mode Resonators: Modelling and Applications. 13th International Conference on Transparent Optical Networks (ICTON 2011), Jun 2011, Stockholm, Sweden. pp.We.P.3, ⟨10.1109/ICTON.2011.5971158⟩. ⟨hal-00637861⟩