International Conference on Instrumentation, Measurement, Circuits and Systems (ICIMCS 2011)
33 Analysis of Photonic Crystal Fiber with Filling Methanol on Temperature Sensor
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The relations of the effective index and the normalized frequency with an index and temperature have researched as filling methanol for photonics crystal fiber (PCF) of the hexagon structure. The theoretical model of the photonics crystal of total internal reflection has studied in plane wave expansion method. The results of the total internal reflection (TIR) PCF temperature characteristic have obtained in filling the liquid material of high refractive index temperature coefficient. The refractive index of filling liquid and temperature affect on the effective refractive index and normalized frequency. The effective refractive index will reduce and normalized frequency will increase as the temperature increases. When the distance between adjacent holes ∧ remains unchanged, the ratio of diameter of holes d and ∧ of d/∧ is greater and the input wavelength is longer, the effective refractive index with the temperature becomes the most sensitively. The properties are valuable for design and application of temperature sensors.