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Mechanism of phase-energy coupling in f-to-2f interferometry

机译:f至2f干涉测量中的相能耦合机理

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摘要

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.
机译:白光产生已广泛用于单发f至2f干涉仪中,用于稳定激光放大器的载波包络(CE)相位。由这种干涉仪测量的相对相位值的精度受激光脉冲能量的波动影响。提出了一个简单的两步模型来解释将激光能量和CE相耦合的机理。该模型解释了实验观察到的f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。

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