光电子快报(英文版), 2018, 14 (4): 280, Published Online: Apr. 16, 2019  

A temperature-insensitive polarization filter and a neo-type sensor based on a hybrid-circular-hole micro-structured optical fiber

Author Affiliations
Chongqing Municipal Key Laboratory of Photoelectronic Information Sensing and Transmitting Technology, Chong-qing University of Posts and Telecommunications, Chongqing 400065, China
Abstract
A temperature-insensitive polarization filter and a neotype sensor based on a hybrid-circular-hole microstructured op-tical 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. Fur-thermore, 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 selec-tively integrate different functional materials. Two different materials are integrated into this proposed MOF, the ap-plication 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.

GUO Jun-qi, ZHOU Min, LU Yong-le, DI Ke, HAN Jun-jian, TANG Chuan, XU Xiao-hu, LIU Yu. A temperature-insensitive polarization filter and a neo-type sensor based on a hybrid-circular-hole micro-structured optical fiber[J]. 光电子快报(英文版), 2018, 14(4): 280.

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