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.
出处
《网络电信》
2007年第10期29-31,21,共4页
Network Telecom
关键词
偏振保持光纤
偏振特性
应力双折射应力区
polarization maintaining fiber
polarization-characteristic：
stress-birefringence
stress-section
