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描述了利用双光路自参考技术测量红外飞秒脉冲载波包络相移的方法,并通过建立的红外飞秒脉冲载波包络相移测量装置,实验测量了自主搭建的可调谐光学参量放大系统输出的红外飞秒激光脉冲的载波包络相移.对于1.6μm的激光脉冲,测量得到在100s内其相位抖动为115mrad(rms).实验结果表明双光路法具有易于调节、测量方便、应用性强等优点.
The method of measuring the envelope phase shift of infrared femtosecond pulse carrier by using self-reference technology with dual optical paths is described. The output of the tunable optical parametric amplification system independently measured is experimentally measured through the established infrared femtosecond pulse carrier envelope phase shift measuring device Of the infrared femtosecond laser pulse carrier envelope phase shift for the 1.6μm laser pulse measured in the 100s its phase jitter is 115mrad (rms) .The experimental results show that the dual-beam method has the advantages of easy to adjust, easy measurement, strong applicability Etc.