光纤非线性偏振不稳定性的研究  

Investigation on nonlinear polarization unstability in optical fibers

作　　者：吴重庆[1] 陶滢[1] 李莉[1] 王拥军[1] 忻向军[1] 

机构地区：[1]北方交通大学光波技术研究所,北京100044

出　　处：《半导体光电》1999年第5期308-311,共4页Semiconductor Optoelectronics

基　　金：博士点基金

摘　　要：光纤中的交叉相位调制将导致非线性双折射，从而引起偏振不稳定性。研究了光纤中线偏振光的入射角度与非线性双折射拍长的关系， 得出了入射偏振光接近快轴时，非线性使双折射增强，拍长变短的结论。这一结果与文献［２］In optical fibers,cross-phase-modulation will lead to nonlinear birefringence which results in polarization unstability. This paper investigates the relationship between incident angle and the beat length of nonlinear birefringence.The results show that when incident polarization light approaches the fast axle, nonlinearity makes birefringence stronger and beat length shorter.This conclusion is contray to Winful's theory in reference [2].

关 键 词：光纤 非线性双折射 偏振不稳定性 拍长 交叉相位调制 

分 类 号：TN818[电子电信—信息与通信工程]