Li Chengquan, Moon Eric, Mashiko Hiroki, Wang He, Nakamura Christopher M, Tackett Jason, Chang Zenghu
J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA.
Appl Opt. 2009 Mar 1;48(7):1303-7. doi: 10.1364/ao.48.001303.
White-light generation has been used widely in single-shot f-to-2f interferometers for stabilizing the carrier-envelope (CE) phase of laser amplifiers. The accuracy of the relative phase values measured by such an interferometer is affected by fluctuations in the laser pulse energy. A simple two-step model is proposed to explain the mechanism that couples the laser energy and the CE phase. The model explains the experimentally observed dependence of the group delay between the f and the 2f pulses on the laser energy, as well as the CE phase shift caused by the pulse energy variation.
白光产生已广泛应用于单次f-2f干涉仪中，用于稳定激光放大器的载波包络（CE）相位。这种干涉仪测量的相对相位值的准确性会受到激光脉冲能量波动的影响。提出了一个简单的两步模型来解释耦合激光能量和CE相位的机制。该模型解释了实验观察到的f脉冲和2f脉冲之间的群延迟对激光能量的依赖性，以及由脉冲能量变化引起的CE相移。
