Achazi Georg, Patas Alexander, Weise Fabian, Pawłowska Monika, Lindinger Albrecht
Institut für Experimentalphysik, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany.
Appl Opt. 2011 Feb 20;50(6):915-23. doi: 10.1364/AO.50.000915.
We present a method to reconstruct the pulse shape of polarization-shaped femtosecond laser pulses after a hollow-core photonic crystal fiber by reflecting the pulses back through the fiber. First, a procedure is introduced to receive the optical fiber properties and generate parametrically shaped pulses after propagation through the fiber. Changes of the fiber's birefringence by mechanical stress are examined to investigate the correlation between the pulse shapes after one and two passes through the fiber. Finally, we demonstrate the characterization of the pulse after one pass through the fiber by calculating the pulse shape from the measured pulse after two passes.
我们提出了一种方法，通过将脉冲反射回空心光子晶体光纤来重建经过该光纤后的偏振形状飞秒激光脉冲的脉冲形状。首先，引入了一个程序来获取光纤特性，并在脉冲通过光纤传播后生成参数化形状的脉冲。研究了机械应力引起的光纤双折射变化，以探究脉冲经过一次和两次光纤传输后脉冲形状之间的相关性。最后，我们通过从两次传输后测量的脉冲计算脉冲形状，展示了脉冲经过一次光纤传输后的特性表征。
