Polarization Coupling Based on Faraday Effect in Whispering-Gallery-Mode Resonator

Abstract

In this article, we study the polarization coupling in a Faraday magnetooptical microcavity. Due to Faraday effect, the polarization coupling can be achieved between the intrinsic left and right elliptically-polarized modes. The mode characteristics of the Faraday microcavity, such as the dispersion curve, mode distribution and polarization evolution, are studied. And the supermodes can generate the different elliptical polarization with the different ellipticity and orientation angles. This polarization coupling may have potential applications related to polarization modulation.

Keywords

• Faraday effects
• whispering-gallery mode (WGM)
• polarization coupling.