掺Er光纤飞秒激光器载波包络位相偏移的探测  

Detection of carrier-envelope offset frequency in an Er-doped fiber femtosecond laser

作　　者：曹士英[1] 蔡岳[2] 王贵重[2] 孟飞[1] 张志刚[2] 方占军[1] 李天初[1] 

机构地区：[1]中国计量科学研究院,电学与量子计量科学研究所,北京100013 [2]北京大学信息科学技术学院,量子电子学研究所,北京100871

出　　处：《物理学报》2011年第9期367-372,共6页Acta Physica Sinica

基　　金：国家科技支撑计划(批准号:2006BAK03A20);国家重点基础研究发展计划(973计划)(批准号:2010CB922902);中国计量科学研究院科研基金(批准号:2002-AKY0928),中国计量科学研究院博士专项科研启动基金(批准号:2002-ATGQDB0902)资助的课题~~

摘　　要：本文介绍了基于掺Er光纤飞秒激光器光学频率梳中光学部分的研制.实验上采用重复频率为230MHz的掺Er光纤飞秒激光器,通过放大、光谱展宽以及单臂f—2f系统,在优化及分析相关参数影响的基础上,获得了～30dB信噪比f0的输出,为光纤光学频率梳的建立奠定了基础.It is the inevitable trend of the development for the optical frequency comb based on the Ti： sapphire femtosecond laser to be replaced by that based on the Er： fiber femtosecond laser. The detection of the carrier-envelope offset f0 in the femtosecond laser is a key to the realization of an optical frequency comb. In this paper, the structure of the optical part of an Er： fiber optical frequency comb is introduced. The optical pulses from an Er： fiber femtosecond laser with a repetition of 230 MHz are first amplified with a two stage amplifiers, spectrally broadened in a highly nonlinear fiber, and then pass through a single-beam f—2f self-referencing interferometer. By optimizing the optical parameters, the f0 with a signal-to-noise ratio of 30 dB is obtained in the Er： fiber femtosecond laser, which is favorable for the realization of an Er： fiber frequency comb.

关 键 词：掺Er光纤激光器 光学频率计量 光纤光学频率梳 光谱展宽 

分 类 号：TN248[电子电信—物理电子学]