高双折射光纤中矢量调制不稳定性  

Vector modulation instability in high birefringence fibers

作　　者：贾维国[1] 杨性愉[1] 

机构地区：[1]内蒙古大学物理系,内蒙古呼和浩特010021

出　　处：《量子电子学报》2005年第2期267-271,共5页Chinese Journal of Quantum Electronics

基　　金：内蒙古自然科学基金资助项目(200308020102)

摘　　要：利用光脉冲在光纤中传播时所遵守的相干非线性薛定谔耦合方程,研究了偏振方向沿两个双折射轴的分量温度相等时,在反常色散区和正常色散区所产生的调制不稳定性。结果表明在反常色散区和正常色散区,对应不同的功率区域输入脉冲肓不同的增益谱,并且当双折射性质变化时导致增益谱表现出明显的不同。The coherently coupled nonlinear Schrodinger (NLS) equation of the propagation of a light pulse in a fiber has been utilized. We have studied modulation instability of linearly polarized light not only in anomalous dispersion regime but also in normal dispersion regime when the intensities along the two birefringence axes are equal. The results show that the input pulses have different gain spectra obviously when input power regime is different, both in anomalous dispersion regime and in normal dispersion regime. Furthermore, the gain spectra is different for different intrinsic birefringence when power of input pulse is invariable.

关 键 词：非线性光学 双折射 矢量调制不稳定性 增益 

分 类 号：TN253[电子电信—物理电子学]