摘要
基于光学微腔的光频梳具有阈值低、光谱宽及结构紧凑等特点,在精密测量与传感等领域具有重要的应用前景,因此近年来微腔光频梳成为国际研究热点。目前相关的研究都聚焦于红外波段锁模光频梳的产生原理和应用探索,虽然可见光波段的光频梳在精密光谱、原子钟及生物医学等领域有特殊应用价值,但是可见光频梳的实现极具挑战性。文中在简要阐述光频梳产生原理的基础上,介绍了在可见光波段实现光频梳的主要挑战,以及目前三种实现方案的研究进展,包括利用材料的二阶与三阶非线性效应、调节微腔的几何色散和模式强耦合效应调控色散来产生可见光频梳。
Optical frequency combs(OFCs)based on optical microcavities have the characteristics of low threshold,wide spectrum,and compact structure,and have important application prospect in the fields of precision measurement,sensing and et al.Therefore,microcavity based OFC has become an international research hotspot in recent years.At present,relevant researches focus on the generation principle and application of modelocked OFCs in the infrared band.Although the OFCs in the visible light band have special applications in the fields of precision spectroscopy,atomic clocks and biomedicine,the realization of visible light OFCs is extremely challenging.Based on a brief description of the generation principle of OFCs,this paper introduces the main challenges of realizing OFCs in the visible light band,and the current research progress of three implementation schemes,including the use of the second-order and third-order nonlinear effects of materials,the regulation of the geometric dispersion of the microcavity,and the regulation of the dispersion via modal strong coupling effect to generate visible light frequency combs.
作者
卢启景
廖令琴
舒方杰
李明
谢树森
邹长铃
Lu Qijing;Liao Lingqin;Shu Fangjie;Li Ming;Xie Shusen;Zou Changling(Key Laboratory of Optoelectronic Science and Technology for Medicine of Ministry of Education,Provincial Key Laboratory for Photonics Technology,Fujian Normal University,Fuzhou 350007,China;Henan Province Engineering Research Center of Microcavity and Photoelectric Intelligent Sensing,School of Electronics and Electrical Engineering,Shangqiu Normal University,Shangqiu 476000,China;CAS Key Laboratory of Quantum Information,University of Science and Technology of China,Hefei 230026,China)
出处
《红外与激光工程》
EI
CSCD
北大核心
2022年第5期101-117,共17页
Infrared and Laser Engineering
基金
国家自然科学基金(12174056,11904316,61705039)
福建省自然科学基金(2021 J01159)
中央引导地方科技发展专项(2020 L3008)。
关键词
光频梳
回音壁模式微腔
色散调控
模式耦合
optical frequency combs
whispering gallery mode microcavity
dispersion management
mode coupling
