Opt Lett. 2013 Dec 15;38(24):5327-30. doi: 10.1364/OL.38.005327.
We report experimental and theoretical studies of Raman-induced cross-phase modulational instabilities (XPMI) in a high-birefringence, normally dispersive optical fiber. Experimental results reveal that the Raman-Stokes wave, generated by a quasi-CW pump beam, interacts with the latter to create a novel type of XPMI sidebands. These sidebands are characterized by a narrow gain bandwidth. The sideband frequencies are well reproduced by a linear stability analysis as well as by full numerical solutions of the coupled generalized nonlinear Schrödinger equations.
我们报告了在高双折射、正常色散光纤中拉曼诱导交叉相位调制不稳定性（XPMI）的实验和理论研究。实验结果表明，由准连续波泵浦光束产生的拉曼斯托克斯波与后者相互作用，产生了一种新型的 XPMI 边带。这些边带的特点是增益带宽较窄。线性稳定性分析以及耦合广义非线性薛定谔方程的完全数值解很好地再现了边带频率。
