Sum-frequency generation of a laser and its background in an on-chip lithium-niobate microdisk  

作　　者：Zhenzhong Hao Li Zhang Jie Wang Fang Bo Feng Gao Guoquan Zhang Jingjun Xu 郝振中;张莉;王杰;薄方;高峰;张国权;许京军(MOE Key Laboratory of Weak-Light Nonlinear Photonics,TEDA Institute of Applied Physics and School of Physics,Nankai University,Tianjin 300457,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China)

机构地区：[1]MOE Key Laboratory of Weak-Light Nonlinear Photonics,TEDA Institute of Applied Physics and School of Physics,Nankai University,Tianjin 300457,China [2]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China

出　　处：《Chinese Optics Letters》2022年第11期49-52,共4页中国光学快报（英文版）

基　　金：supported by the National Key Research and Development Program of China(No.2019YFA0705000);the National Natural Science Foundation of China(Nos.12034010,92050111,12134007,11734009,92050114,12004197,and 12074199);the Higher Education Discipline Innovation Project(No.B07013).

摘　　要：Lithium-niobate microcavities have not only the ability to resonantly enhance light–matter interaction but also excellent nonlinear optical properties,thereby providing an important platform for nonlinear optical investigations.In this paper,we report the observation of multi-peak spectra in the near infrared range in lithium-niobate microcavities on a chip under the pump of a 1550 nm continuous laser.Such a multi-peak spectrum was attributed to the sum-frequency of the pump laser and its background.The conversion efficiencies of the sum-frequency processes are of the order of61.5%W-1.The influences of the phenomenon on nonlinear processes were further discussed.

关 键 词：lithium niobate MICROCAVITIES nonlinear optics 

分 类 号：TN24[电子电信—物理电子学] TQ131.11[化学工程—无机化工]