We demonstrate broadband supercontinuum generation in an all-normal dispersion polarization-maintaining photonic crystal fiber and report the observation of a cross-phase modulation instability sideband generated outside of the supercontinuum bandwidth. We demonstrate that this sideband is polarized on the slow axis and can be suppressed by pumping on the fiber’s fast axis. We theoretically confirm and model this nonlinear process using phase-matching conditions and numerical simulations, obtaining good agreement with the measured data.

中文翻译：

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基于PM ANDi光纤的超连续谱生成中的跨相位调制不稳定性。

我们演示了在全正常色散保持偏振光子晶体光纤中宽带超连续谱的产生，并报告了在超连续谱带宽之外产生的交叉相位调制不稳定性边带的观察结果。我们证明，该边带在慢轴上极化，并且可以通过在快轴上泵浦来抑制。我们在理论上使用相匹配条件和数值模拟对非线性过程进行确认和建模，从而与测量数据获得良好的一致性。