掺铒光纤飞秒光梳频率锁定研究  

Research on frequency locking of Erbium-doped fiber femtosecond optical comb

作　　者：魏明明 郭文阁[1,2] 闫露露[2,3] 张攀[2,3,4] 刘师彤 李铭坤 张颜艳 翟二江[1,3] 高炜欣[1] 姜海峰 张首刚[2,3] WEI Ming-ming;GUO Wen-ge;YAN Lu-lu;ZHANG Pan;LIU Shi-tong;LI Ming-kun;ZHANG Yan-yan;ZHAI Er-jiang;GAO Wei-xin;JIANG Hai-feng;ZHANG Shou-gang(Xi'an Shiyou University,Xi'an 710065,China;National Time Service Center,Chinese Academy of Science,Xi'an 710600,China;Key Laboratory of Time and Frequency Primary Standards,National Time Service Center,Chinese Academy of Sciences,Xi'an 710600,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]西安石油大学,西安710065 [2]中国科学院国家授时中心,西安710600 [3]中国科学院时间频率基准重点实验室,西安710600 [4]中国科学院大学,北京100049

出　　处：《光电子．激光》2021年第3期317-322,共6页Journal of Optoelectronics·Laser

基　　金：西安石油大学研究生创新与实践能力培养计划项目(YCS19213094);中科院西部之光项目“超稳激光频率精密测量”(中科院人字(2018)6号文件);中科院国际人才计划杰出学者项目(中科院际字(2019)1号);“西部青年学者”项目“光生微波源关键技术研究”(XAB2019B19);中国科学院国家授时中心“青年创新人才”项目“应用于飞秒光梳的新型控制算法研究”(国授发字[2019]5号);国家自然科学基金(91536217,61825505)资助项目。

摘　　要：飞秒光梳可以直接实现光频到微波频率转换,广泛应用于时频和计量领域,掺铒光纤飞秒光梳因其良好的频率稳定性、鲁棒性和可搬运性而倍受科学家青睐。本文报道了对掺铒光纤飞秒光梳载波包络相移频率和梳齿频率的锁定,通过控制腔内色散方法,利用反馈泵浦驱动电流方法实现载波包络相移频率的锁定;利用控制光学腔长度的方法,通过反馈电光调制晶体和压电陶瓷驱动电压实现了梳齿频率的频率锁定。最终得到载波包络相移频率和梳齿频率的频率稳定度分别为2.3×10^(-16)@1 s和3.5×10^(-17)@1 s,并能长期稳定不间断锁频达到37 h。Femtosecond optical frequency comb is used as an optical frequency divider for transmitting the optical frequency to microwave frequency,which is widely used in time-frequency and Metrology fields.Erbium doped fiber femtosecond optical frequency comb is favored by scientists because of its good frequency stability,robustness and portability.In this experiment,we use an Erbium fiber optical frequency comb.And more researches were explored on the frequency stabilization systems for the carrier envelope phase-shift frequency and the comb tooth frequency.This paper reports the locking of the carrier envelope phase shift frequency and comb tooth frequency of the erbium-doped fiber femtosecond optical frequency comb.By controlling the intracavity dispersion method,the feedback pump driving current method is used to achieve the carrier envelope phase shift frequency locking,using control the optical cavity length method realizes the frequency lock of the comb frequency by feeding back the EOM and PZT driving voltage.The experimental results show that the carrier envelope phase-shift frequency stability is 2.3×10^(-16)@1 s and the comb tooth frequency stability is 3.5×10^(-17)@1 s,and the carrier envelope phase-shift frequency and comb tooth frequency can be locked for 37 hours continuously and stably.

关 键 词：飞秒光学频率梳 载波包络相移频率 梳齿频率 频率锁定 稳频系统 

分 类 号：TN24[电子电信—物理电子学]