光纤飞秒光学频率梳载波包络偏移频率锁定的实验研究  

Experiment Study on Carrier-Envelope Offset Frequency Locking in a Femtosecond Fiber Comb

作　　者：夏传青 武腾飞[1] 赵春播[1] 韩继博 李姝熠 邢帅[1] 张磊[1] 

机构地区：[1]中国航空工业集团公司北京长城计量测试技术研究所计量与校准技术重点实验室,北京100095

出　　处：《激光与光电子学进展》2016年第12期281-286,共6页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61205169);国家"十二五"技术基础科研项目(JSJC2012205B003)

摘　　要：自主研制了基于掺铒光纤飞秒激光技术的光纤飞秒光学频率梳。详细介绍了此光纤光梳的系统结构、工作过程与各项性能参数。经过功率放大、色散优化与高非线性光纤扩谱等过程,得到了超过一个倍频程的光梳超连续光谱。光梳的载波包络偏移频率(简称偏频,f_o)从f-2f共线式干涉系统中提取,并锁定至铷原子钟上。实验获得了35dB信噪比的偏频信号,实现了锁定时间超过12h的稳定运转。A home-made fiber comb is developed based on the technology of Erbium-doped fiber femtosecond laser. The system configuration, working process and performance parameters of this comb are described in detail. A supercontinuum more than one octave is obtained after power amplification, dispersion optimization and spectrum spreading in highly nonlinear fibers. The carrier-envelope offset frequency （fo） is extracted by means of a linear f-2f interferometer and locked to a Rubidium atomic clock. The observed signal-to-noise ratio of fo is 35 dB and steady operation with locking time more than 12 h is demonstrated.

关 键 词：超快光学 光学频率梳 载波包络偏移频率 光纤飞秒激光器 超连续谱 

分 类 号：TN24[电子电信—物理电子学]