侧面抛磨极化光纤的传输特性分析  

Propagation Characteristics of Lightwave in Side-Polished Poled Fibers

作　　者：倪明[1] 胡永明[1] 孟洲[1] 陈哲[2] 廖延彪[2] 

机构地区：[1]国防科技大学光电工程系,长沙410073 [2]清华大学电子工程系,北京100084

出　　处：《光学学报》2002年第1期121-125,共5页Acta Optica Sinica

基　　金：国家自然科学基金 (6 97870 0 2 )资助课题

摘　　要：针对侧面抛磨极化光纤的物理结构 ,提出了极化光纤的双金属包覆六层波导模型 ,并对其传输特性进行了分析。分析指出 ,由于金属电极镀在极化光纤的侧面抛磨平面上 ,极化光纤中传播的光具有偏振消光特性。对极化光纤的传输特性影响较大的器件结构参量为被抛磨侧面与纤芯的距离 。On the basis of configuration of side-polished poled fiber, a model of six-layer waveguide with double metal layers is put forwavd to describe the poled fiber and analyze the propagation characteristics of lightwave in the poled fibers. The analysis indicated that the lightwave propagating in the poled fiber has characteristics of polarization extinction due to the existence of metal electrodes deposited on the flat of the optical fiber. The main parameters of the device that affects the propagation characteristics of poled fiber are the distance between the core and polished flat, and the thickness of insulator adjacent to the anode.

关 键 词：侧面抛磨 极化光纤 传输特性 光学波导 光纤偏振器 偏振消光 物理结构 

分 类 号：TN25[电子电信—物理电子学]