论文部分内容阅读
在光纤传感技术中,单模保偏光纤有着广泛而诱人的应用前景,低损耗单模保偏光纤又是将来实现相干通信的基石。70年代末,以英国南安普顿大学为代表,国外许多单位竞相开展单模保偏光纤及其测试技术的研究,提出了熊猫(PANDA)型,蝴蝶结(Bow-tie)型和椭圆应力包层型多种结构的保偏光纤。近几年,鉴于研究光纤陀螺仪、大电流或强磁场等新型光纤传感器的需
In optical fiber sensing technology, single mode PM fiber has a wide range of attractive applications, low loss single mode PM fiber is the cornerstone of future coherent communication. In the late 1970s, with the University of Southampton as the representative, many foreign units competed to carry out research on single-mode polarization-maintaining optical fiber and its testing technology. PANDA type, bow-tie type and oval stress cladding A variety of structures of polarization-maintaining fiber. In recent years, in view of the study of optical fiber gyroscope, high current or strong magnetic field and other new optical fiber sensor needs