全保偏掺铒光纤光梳  

All Polarization-Maintaining Erbium-Doped Fiber Based Optical Comb

作　　者：鄢朋朋 贡航 叶飞 程朝亮 王庆婷 陆诗雨 陈飞[1] 王天烨 刘婷婷 郭政儒 沈旭玲 杨康文 郝强[1] 曾和平[1,2,4] Yan Pengpeng;Gong Hang;Ye Fei;Cheng Chaoliang;Wang Qingting;Lu Shiyu;Chen fei;Wang Tianye;Liu Tingting;Guo Zhengru;Shen Xuling;Yang Kangwen;Hao Qiang;Zeng Heping(School of Optical Electrical Information and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;State Key Laboratory of Precision Spectroscopy Science and Technology,East China Normal University,Shanghai 200062,China;State Key Laboratory of High Field Laser Physics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Jinan Institute of Quantum Technology,Jinan,Shandong250101,China)

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093 [2]华东师范大学精密光谱科学与技术国家重点实验室,上海200062 [3]中国科学院上海光学精密机械研究所强场激光物理国家重点实验室,上海201800 [4]济南量子技术研究院,山东济南250101

出　　处：《中国激光》2020年第1期326-329,共4页Chinese Journal of Lasers

基　　金：国家重点研发计划(2018YFB0407100);国家自然科学基金(11434005,11504235,11704253);上海市青年科技英才“扬帆计划”(17YF1413100)。

摘　　要：搭建了基于非线性放大环形镜的全保偏掺铒光纤激光器,它可为光梳系统在室外环境中的应用提供稳定运行的光学振荡源。在实验上,通过两级光学预放大及高非线性光纤获得了1000~2300 nm的超连续谱,采用共线型f-2f干涉仪检测到的载波包络偏移频率f0的信噪比高达35 dB。研究了腔内净色散和f0线宽的关系,并将自由运转状态下的f0线宽窄化至5 kHz。将光梳系统的主要参数(重复频率fr和载波包络偏移频率f0)溯源至同一台铷原子钟,锁定后所测标准偏差分别为780μHz和308 mHz。该光纤光梳系统具有集成度高、体积小的特点。An all polarization-maintaining fiber laser is established based on a nonlinear amplifying loop mirror,and thus a stable optical oscillator source is applied to an optical comb system which works outdoors.In this experiment,supercontinuum covering from 1000 nm to 2300 nm is produced by using two-level optical preamplification and high nonlinear fibers.The optimal signal-to-noise ratio of carrier-envelope offset frequency f0 detected by the collinear f-2f interferometer is 35 dB.Furthermore,the relationship between the net cavity dispersion and the linewidth of f0 is investigated.The narrowest linewidth of f0 in the free-running mode is narrowed to 5 kHz.Finally,the repetition rate fr and f0 are both phase-locked to a rubidium atomic clock.The standard deviations for fr and f0 are 780μHz and 308 mHz,respectively.The fiber optic comb system guarantees compact size and excellent integration level.

关 键 词：激光器 非线性放大环形镜 载波包络偏移频率 频率锁定 光学频率梳 

分 类 号：TN249[电子电信—物理电子学]