A temperature-insensitive polarization filter and a neotype sensor based on a hybrid-circular-hole microstructured optical fiber  

作　　者：GUO Jun-qi ZHOU Min LU Yong-le DI Ke HAN Jun-jian TANG Chuan XU Xiao-hu LIU Yu 郭俊启;周敏;路永乐;邸克;韩军健;唐川;徐小虎;刘宇(Chongqing Municipal Key Laboratory of Photoelectronic Information Sensing and Transmitting Technology, Chongqing University of Posts and Telecommunications)

机构地区：Chongqing Municipal Key Laboratory of Photoelectronic Information Sensing and Transmitting Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

出　　处：《Optoelectronics Letters》2018年第4期280-285,共6页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.61705027 and 11704053);the Innovation Leader Talent Project of Chongqing Science and Technology(No.CSTCCXLJR20171160);the Basic Research Project of Chongqing Science and Technology Commission(Nos.KJZH17115,Cstc2017csms A40017,KJ1704091,KJ1704104 and KJ1704106)

摘　　要：A temperature-insensitive polarization filter and a neotype sensor based on a hybrid-circular-hole microstructured optical fiber(MOF) are proposed. Numerical investigations demonstrate that the x polarized component of silica core mode can couple to the cladding mode in the researched wavelength, while the y polarized component would not. Furthermore, the resonant region can be controlled by changing the diameters or coordinates of the air holes, and the MOF has good performance on stability of temperature. Moreover, the hybrid-circular-hole structure is propitious to selectively integrate different functional materials. Two different materials are integrated into this proposed MOF, the application of the Sagnac interferometer in temperature sensing is studied, and two groups of dips would be observed in the transmission spectra, which have different temperature sensitivities. Therefore, the proposed MOF can be used as a flexible temperature-insensitive polarization filter or potentially applied to a two-parameter sensor.

关 键 词：温度敏感 过滤器 传感器 光纤维 极化 MOF 坐标控制 稳定性 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]