Analysis of temperature sensing characteristics of photonic bandgap photonic crystal fiber

ZHANG Min; LIU Min; SUN Shi-hong; MA Ling-fang; HE Feng-liang

doi:10.3969/j.issn.1001-3806.2012.02.015

In order to improve the temperature sensitivity of photonic bandgap fiber,a new structure was proposed merging high refractive index liquid cylinders into the surround of the fiber core.By means of full-vector finite element method,the influence of temperature on the effective refractive index,core energy,effective mode area was obtained.The numerical results show that when the temperature increases,the effective refractive index and the effective mode area decrease,the core energy increases,and the zero dispersion wavelength moves towards longer wavelength.These changes are quite significant when the wavelength is short.The proposed structure improves the temperature sensitivity of the transmission characteristics,which makes photonic bandgap photonic crystal fibers more suitable for temperature sensing applications.

Analysis of temperature sensing characteristics of photonic bandgap photonic crystal fiber

Corresponding author: LIU Min, liumin@cqu.edu.cn;

1. College of Communications Engineering, Chongqing University, Chongqing 400044, China

Received Date: 2011-06-15

Accepted Date: 2011-06-29

Available Online: 2012-03-25

Abstract: In order to improve the temperature sensitivity of photonic bandgap fiber,a new structure was proposed merging high refractive index liquid cylinders into the surround of the fiber core.By means of full-vector finite element method,the influence of temperature on the effective refractive index,core energy,effective mode area was obtained.The numerical results show that when the temperature increases,the effective refractive index and the effective mode area decrease,the core energy increases,and the zero dispersion wavelength moves towards longer wavelength.These changes are quite significant when the wavelength is short.The proposed structure improves the temperature sensitivity of the transmission characteristics,which makes photonic bandgap photonic crystal fibers more suitable for temperature sensing applications.

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Analysis of temperature sensing characteristics of photonic bandgap photonic crystal fiber

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