双折射光纤中偏振相关的集总放大研究(英文)  

Polarization-dependent Lumped Amplification in Birefringent Fibers

作　　者：陈伟成[1] 徐文成[2] 梁湛强[2] 罗爱平[2] 崔虎[2] 

机构地区：[1]佛山科学技术学院物理系,广东佛山528000 [2]华南师范大学光子信息技术(广东省高校)重点实验室,广州510631

出　　处：《光子学报》2007年第2期252-257,共6页Acta Photonica Sinica

基　　金：Natural Science Foundation of Guangdong Province(04010397)and Natural Science Foundation ofFoshan University of China

摘　　要：研究了偏振相关的集总放大方案对非线性脉冲传输特性的影响.提出利用非线性增益的偏振相关集总放大方案去抑制脉冲偏振成分的分裂—融合碰撞行为和由随机双折射引起的线性色散波.数值计算结果表明:采用具有非线性增益的偏振相关集总放大方案,经过第一个放大器后脉冲的差分群时延变小,这说明了周期性的脉冲分裂—融合碰撞行为得到了有效的抑制.并且,随后的放大器因不同偏振相关的增益将促使脉冲偏振成分要么以呼吸振荡行为出现,要么以时域完全捕获行为出现.The effects of polarization-dependent lumped amplification schemes on nonlinear pulse propagation are studied. Polarization-dependent lumped amplification with nonlinear gain is suggested to use for suppressing the splitting-mergence soliton interactions and linear dispersive waves induced by random birefringence. Numerical calculation proves that the differential group delay between two components after the first amplifier becomes much smaller in polarization-dependent lumped amplification scheme with nonlinear gain, which means that the periodical pulse splitting and mergence interactions are suppressed efficiently. Moreover, polarization dependent gain of the following amplifier with nonlinear gain will promote the appearance of whether breath oscillation behavior of two components or full trapping of them in the transmission.

关 键 词：光纤通信 偏振相关放大 随机双折射 非线性增益 

分 类 号：TN929[电子电信—通信与信息系统]