SPONTANEOUS SYMMETRY BREAKING IN GLASS MICROSPHERES WITH CUBIC NONLINEARITY AND RAYLEIGH SCATTERING
E. A. Anashkina, A. V. Andrianov
A. V. Gaponov-Grekhov Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia
Keywords: optical microresonator, spontaneous symmetry breaking, cubic nonlinearity, Rayleigh scattering
Abstract
Spontaneous symmetry breaking in glass dielectric microspheres with the Kerr nonlinearity is studied experimentally and theoretically, taking into account the linear Rayleigh scattering between counterpropagating waves under bidirectional symmetric optical pumping. It is shown that the higher the Rayleigh scattering coefficient, the higher the threshold power required to observe the effect. An increase in the Rayleigh coupling coefficient between counterpropagating waves leads to narrowing of the region of the pump frequency detuning from the exact resonance frequency where spontaneous symmetry breaking is realized and to a decrease in the asymmetry of the light states.
|
