论文部分内容阅读
实验利用商品光纤飞秒激光器,自行构建了一套完整的光学频率梳系统,并获得了约30dB信噪比的系统频移(fceo)信号.实现了光频梳重复频率(frep)信号及系统频移(fceo)信号的高稳定度锁定,并通过实验验证了光频梳锁定的跟踪精度.基于此稳定光频梳完成了对1064nm碘稳频Nd:YAG固体激光器的绝对频率测量.实验结果表明,frep的跟踪精度在100s取样时间时优于3.7×10-14,测量得到的1064nm激光器绝对频率为:281630111757362Hz.这一测量结果与国际计量委员会(CIPM)给出的国际推荐值符合到不确定度之内.
A complete set of optical frequency comb system was built by using commercial fiber femtosecond laser and a system frequency fceo signal of about 30dB SNR was obtained.The signal and system of the optical frequency comb repetition frequency (frep) Frequency fcost signal, and verified the tracking accuracy of the optical frequency comb lock by experiments.The absolute frequency measurement of the 1064nm iodine-stabilized Nd: YAG solid-state laser was completed based on the stable optical frequency comb.The experimental results Shows that the tracking accuracy of frep is better than 3.7 × 10-14 at sampling time of 100s and the measured absolute frequency of 1064nm laser is 281630111757362Hz.This measurement conforms to the international recommendation given by International Commission of Measurement (CIPM) Within the certainty