Recent progress of second harmonic generation based on thin film lithium niobate

• 作者: Yang Li Zhijin Huang Wentao Qiu Jiangli Dong Heyuan Guan Huihui Lu
• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: Special Issue on Lithium Niobate Based Photonic Devices
• 页码范围: 54-65
• 页数: 12页
• 语种: 英文
• DOI: 10.3788/COL202119.060012

摘要

Recently,nonlinear photonics has attracted considerable interest.Among the nonlinear effects,second harmonic generation[SHG]remains a hot research topic.The recent development of thin film lithium niobate[TFLN]technology has superior performances to the conventional counterparts.Herein,this review article reveals the recent progress of SHG based on TFLN and its integrated photonics.We mainly discuss and compare the different techniques of TFLN-based structures to boost the nonlinear performances assisted by localizing light in nanostructures and structured waveguides.Moreover,our conclusions and perspectives indicate that more efficient methods need to be further explored for higher SHG conversion efficiency on the TFLN platform.