摘要
光学频率梳是一种宽谱的相干光源,由一系列等频率间隔的离散谱线组成,具有超高的时频精度。自诞生以来,光学频率梳为精密光谱学、光学测量、相干光通信、光时钟等多种应用的发展带来了革命性的变化。近年来,研究人员通过新型激光增益介质、非线性频率转换和微谐振腔等技术将频率梳扩展到中红外光谱区域(2~20μm),进一步扩大了光频梳的应用范围。文中全面介绍了中红外光频率梳的产生机制、最新进展及应用。
Optical frequency comb is a kind of broad spectrum coherent light source, which is composed of a series of discrete spectral lines with equal frequency interval and has ultrahigh time-frequency accuracy. Since its birth, optical frequency comb has brought revolutionary changes to the development of precision spectroscopy,optical measurement, coherent optical communication, optical clock and other applications. In recent years,researchers have extended the frequency comb to the mid-infrared spectrum region(2-20 μm) by using novel laser gain media, nonlinear frequency conversion and micro-resonator techniques, and further expand the application range of optical frequency comb. In this paper, the generation mechanism, latest development and application of mid-infrared frequency comb are introduced.
作者
杜俊廷
常冰
李照宇
张浩
秦琛烨
耿勇
谭腾
周恒
姚佰承
Du Junting;Chang Bing;Li Zhaoyu;Zhang Hao;Qin Chenye;Geng Yong;Tan Teng;Zhou Heng;Yao Baicheng(Key Laboratory of Optical Fiber Sensing and Communication(MOE),University of Electronic Science and Technology of China,Chengdu 611731,China)
出处
《红外与激光工程》
EI
CSCD
北大核心
2022年第3期79-93,共15页
Infrared and Laser Engineering
基金
国家自然科学基金(61975025)
国家重点研发计划(2021YFB2800602)
之江-电子科技大学联合项目(202012KFY00562)。
关键词
中红外
光频梳
精密计量
非线性
分子指纹
mid-infrared
optical frequency comb
precision measurement
nonlinear
molecular fingerprint
