关键词: 微纳光纤/
高双折射/
强倏逝场效应/
折射率传感
English Abstract
Polarization-maintaining microfiber-based evanescent-wave sensors
Li Jie,Li Meng-Meng,
Sun Li-Peng,
Fan Peng-Cheng,
Ran Yang,
Jin Long,
Guan Bai-Ou
1.Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
Fund Project:Project supported by the National Science Fund for Distinguished Young Scholars of China (Grant No. 61225023), the National Natural Science Foundation of China (Grant Nos. 61575083, 61235005), the Natural Science Foundation of Guangdong Province, China (Grant No. 2014A030313364).Received Date:16 January 2017
Accepted Date:16 March 2017
Published Online:05 April 2017
Abstract:In recent years, polarization-maintaining (PM) microfibers have attracted much research attention mostly due to their ultra-high birefringence and large evanescent field effect. This article starts from introduction of the structures, fabrication methods, and mode characteristics of PM microfibers. Different previously-implemented PM microfiber sensors have been presented. The two polarization modes may have different responses on changes of external parameters for PM microfiber, which allows fabrication of polarization-related devices, such as interferometers or gratings. Some sensing characteristics, such as extremely-high refractive index sensitivity and/or temperature-independent response, have been demonstrated. The sensing applications including detection of refractive index, humidity, magnetic field and specific DNA molecular have been described in detail. This article should be helpful for future development of PM micro/nano fibers and the related sensors.
Keywords: microfiber/
high birefringence/
large evanescent field effect/
refractive index sensors
