TITLE:
The Design of Bending Long Period of Photonic Crystal Fiber Grating Sensors
AUTHORS:
Xianlun Yu, Weidong Gao, Yong Qu, Shunjun Shu
KEYWORDS:
Fiber Optics, Photonic Crystal Fiber, Photonic Crystal Fiber Grating Bending Sensor
JOURNAL NAME:
Optics and Photonics Journal,
Vol.6 No.8B,
August
25,
2016
ABSTRACT: The bending photonic crystal fiber grating sensor is an important role in underwater monitoring and fire alarm systems. It is studied that the resonant wavelength expression of bending long period photonic crystal fiber gratings is deduced, it is designed that a bending long period photonic crystal fiber grating sensor system, it is calculated in theory that between the bending long period photonic crystal fiber gratings sensor resonance wavelength and the grating period and the bending strain. The result is shown by calculating and analysing in theory, the grating curvature is increased by the increase of the bending strain of the grating, and the resonance wavelength of the grating sensor is drifted, the drift amount is increased, one in this grating, the drifted amount of the resonant wavelength is 0.014 nm.