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.

由于铌酸锂的高折射率对比度和优异的材料特性，例如从可见光到中红外的宽带透明度、大电光，绝缘体上铌酸锂 (LNOI) 正在成为集成光子学最有前途的平台之一，压电和二次谐波系数。LNOI 上快速发展的微米和纳米结构技术已经实现了各种结构、器件、系统和应用。在这篇文章中，我们回顾了该平台的最新发展，包括超高速电光调制器、光学频率梳、片上光电机械系统、周期性极化 LN 波导中的二次谐波产生和高效边缘耦合对于 LNOI。