Photonic devices based on thin-film lithium niobate on insulator
Shuai Yuan, Changran Hu, An Pan, Yuedi Ding, Xuanhao Wang, Zhicheng Qu, Junjie Wei, Yuheng Liu, Cheng Zeng, Jinsong Xia
Abstract
Abstract Lithium niobate on insulator (LNOI) is rising as one of the most promising platforms for integrated photonics due to the high-index-contrast and excellent material properties of lithium niobate, such as wideband transparency from visible to mid-infrared, large electro-optic, piezoelectric, and second-order harmonic coefficients. The fast-developing micro- and nano-structuring techniques on LNOI have enabled various structure, devices, systems, and applications. In this contribution, we review the latest developments in this platform, including ultra-high speed electro-optic modulators, optical frequency combs, opto-electro-mechanical system on chip, second-harmonic generation in periodically poled LN waveguides, and efficient edge coupling for LNOI.