Quantifying noise in ultrafast laser sources and its effect on nonlinear applications.
Quantifying noise in ultrafast laser sources and its effect on nonlinear applications.
复制标题
量化超快激光源中的噪声及其对非线性应用的影响。
作者：
V. Lozovoy;Gennady Rasskazov;D. Pestov;M. Dantus
非线性光学应用依赖于激光脉冲的脉冲宽度和相干性。高重复率脉冲激光源的脉冲间不稳定性使其表征变得复杂。在这里，我们介绍和实验证明，可用于确定超快激光源的脉冲到脉冲保真度的定量测量。数值模拟和实验表明，频谱相位和幅度噪声对二次和三次谐波产生的影响。
Nonlinear optical applications depend on pulse duration and coherence of the laser pulses. Characterization of high-repetition rate pulsed laser sources can be complicated by their pulse-to-pulse instabilities. Here, we introduce and demonstrate experimentally a quantitative measurement that can be used to determine the pulse-to-pulse fidelity of ultrafast laser sources. Numerical simulations and experiments illustrate the effect of spectral phase and amplitude noise on second and third harmonic generation.