%0 Journal Article
%T Measurement of carrier-envelope phase of few cycles Ti:sapphire laser by difference frequency technique<br>PPLN晶体差频测量飞秒激光脉冲的载波包络相移
%A Han Hai_Nian
%A Zhao Yan_Ying
%A Zhang Wei
%A Zhu Jiang_Feng
%A Wang Peng
%A Wei Zhi_Yi
%A Li Shi_Qun
%A <br>韩海年
%A 赵研英
%A 张 炜
%A 朱江峰
%A 王 鹏
%A 魏志义
%A 李师群
%J 物理学报
%D 2007
%I 
%X The self-reference technique is widely used to measure the carrier-envelope phase offset (CEO) of femtosecond laser pulses in the normal femtosecond laser frequency comb system. However, the instability of the frequency comb system is increased because the photonic crystal fiber is introduced into the system to broaden the spectrum of femtosecond laser pulses outside the cavity. In this paper, we presented another method to measure specifically the CEO for the broad spectrum Ti:sapphire oscillator with the pulse duration of 7fs, namely the difference frequency technique, with which we have obtained the beat frequency signal with a S/N ratio greater than 31dB. This provided a good precondition for the next generation of the femtosecond laser frequency comb system without the photonic crystal fiber.
%K femtosecond laser frequency comb
%K self-reference technique
%K difference frequency technique
%K carrier-envelope phase offset<br>飞秒光学频率梳
%K 自参考技术
%K 差频技术
%K 载波包络相移
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=559B5E7B049AC104&yid=A732AF04DDA03BB3&vid=014B591DF029732F&iid=94C357A881DFC066&sid=8AD9E218CC1C7079&eid=4455C105DD030FEF&journal_id=1000-3290&journal_name=物理学报&referenced_num=3&reference_num=14