随机双折射光纤中的偏振相关布里渊增益
Polarization dependent Brillouin gain in randomly birefringent fibers
摘要：
通过对随机双折射光纤中受激布里渊放大的传输方程进行数值积分，实现了泵浦、信号和偏振相关增益（PDG）矢量之间的对准。在光纤输出端，由于非线性偏振牵引效应，对于大泵浦功率，信号倾向于与PDG矢量对准。对于大的随机双折射，PDG矢量对准到具有与泵浦相同的线性分量但相反的圆形分量的状态。
英文摘要：
An extensive study of the alignment between the pump, the signal and the polarization dependent gain (PDG) vectors in stimulated Brillouin amplification in randomly birefringent fibers is realized by numerically integrating the equations governing the propagation. At the fiber output, the signal tends to align to the PDG vector for large pump power because of the nonlinear polarization pulling effect. The PDG vector, for large random birefringence, aligns to a state that has the same linear component of the pump but opposite circular component.
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