ENDIF, Department of Engineering, University of Ferrara, via Saragat 1, 44122 Ferrara, Italy.
Opt Lett. 2011 Jun 1;36(11):1999-2001. doi: 10.1364/OL.36.001999.
We investigate the modulation instability of multiple four-wave mixing arising from a dual-frequency pump in a single-mode fiber or waveguide. By applying the Floquet theory on account of the periodic nature of four-wave mixing, we reveal a collective type of instability occurring in the anomalous dispersion regime. Our interpretation of the linear stability analysis is validated by the numerical solution of the nonlinear Schrödinger equation.
我们研究了在单模光纤或波导中双频泵浦引起的多种四波混频的调制不稳定性。通过在四波混频的周期性基础上应用 Floquet 理论，我们揭示了反常色散区中出现的一种集体不稳定性。我们对线性稳定性分析的解释通过非线性薛定谔方程的数值解得到了验证。
