Lithium niobate photonic devices

Abstract

Lithium niobate (LN) is a well-known material extensively used for optical modulators, thanks to its large electro-optic coefficient. The advancement of thin-film LN technology has sparked tremendous interest in the field of integrated optics. The capability of co-integration ultralow loss monolithic optical waveguides with highly efficient microwave control could enable next-generation, completely novel electro-optic and nonlinear photonic devices with advanced functionalities in a small footprint. Here, we discuss the recent development of electro-optic frequency shifters and beamsplitters, acousto-optic modulators, and electro-optic frequency combs, powered by integrated LN photonics.