Photothermal effects on optical bistability and second-order sidebands in a cavity

We theoretically study the optical bistability and second-order sideband generation (SSG) in an optical cavity having photothermal effect in our paper. Using the perturbation method, we give an explicit analytical expression for SSG, showing a conversion efficiency of over 30%. With change in the system parameters, our numerical method shows that the transparency window of the photothermal induced transparency and the SSG can be significantly enhanced by the photothermal effects. Our obtained results in this study can provide a reference to develop a new way in all-optical switching and precision measurement.

Automated summary

We theoretically study the optical bistability and second-order sideband generation (SSG) in an optical cavity with photothermal effect in this paper. Using the perturbation method, we provide an explicit analytical expression for SSG, showing a conversion efficiency of over 30%. Our numerical method demonstrates that the transparency window of photothermal induced transparency and SSG can be significantly enhanced by the photothermal effects. The results obtained in this study can serve as a reference for the development of new approaches in all-optical switching and precision measurement.