Electro-optic broadband modulator based on lithium niobate WGM microresonator

Abstract

We report an experimental investigation of electrooptic amplitude modulator based on whispering gallery mode (WGM) optical microresonators. We have analyzed in detail the limits of operating ranges and ways to extend them. The WGM resonator is a polished lithium niobate micro-disk with metal deposited ring RF electrodes. To excite the WGM modes, a coupling prism was used.