Opt Lett. 2013 Dec 15;38(24):5338-41. doi: 10.1364/OL.38.005338.
We report control of the spectral and noise properties of spontaneous modulation instability (MI) in optical fiber using an incoherent seed with power at the 10(-6) level relative to the pump. We sweep the seed wavelength across the MI gain band, and observe significant enhancement of MI bandwidth and improvement in the signal-to-noise ratio as the seed coincides with the MI gain peak. We also vary the seed bandwidth and find a reduced effect on the MI spectrum as the seed coherence decreases. Stochastic nonlinear Schrödinger equation simulations of spectral and noise properties are in excellent agreement with experiment.
我们报告了使用与泵浦相比功率处于 10(-6) 级的非相干种子来控制光纤中自发调制不稳定性（MI）的光谱和噪声特性。我们在 MI 增益带宽内扫描种子波长，并观察到当种子与 MI 增益峰值吻合时，MI 带宽显著增强，信号噪声比得到改善。我们还改变了种子带宽，发现当种子相干性降低时，对 MI 光谱的影响减小。光谱和噪声特性的随机非线性薛定谔方程模拟与实验结果非常吻合。
