1550nm工作波长新型结构细径偏振保持光纤的制备及性能研究  

Fabrication and Characteristic Research of A Novel Structure Polarization Maintaining Fiber at 1550nm operation wavelenBth

作　　者：文建湘[1] 萧天鹏[1] 吴江[1] 

机构地区：[1]江苏法尔胜光子有限公司,江苏江阴214434

出　　处：《网络电信》2007年第10期29-31,21,共4页Network Telecom

摘　　要：应力致偏型偏振保持光纤利用光纤材料热膨胀系数的差异，在材料内部产生热应力，致使光在传输过程中保持偏振特性。但要使其拥有高的双折射与短拍长且高强度性能，则对保偏光纤的结构设计与制造提出较高要求。本文主要是对工作波长在1550nm，新型结构细径偏振保持光纤的制备与性能进行研究，并制备出拍长达到2．1mm、消光比达到28dB（1km）、工作波长在1550nm、低衰减高强度的细径偏振保持光纤。By utilizing difference of thermal expansion coefficient of fiber material, coming into being thermal stress inside the fiber, light is maintained polarization in the process of transmission inside stress-induced polarization maintaining fiber. But with high-birefringence, short beat length and high-strength, much higher demand has been put forward to structure design and fabrication. Characteristic research and fabrication of a novel structure polarization maintaining fiber at 1550nm operation wavelength are studied in this paper. As a result, a low-loss and high-strength reduced diameter PM fiber with beat length close to 2.1 mm at 1550 nm operation wavelength and extinction ration approximately 28dB（km） has been produced.

关 键 词：偏振保持光纤 偏振特性 应力双折射应力区 

分 类 号：TN25[电子电信—物理电子学]