Research on Fused Tapered Photonic Crystal Fiber Sensor Based on the Method of Intermittent Cooling

Based on the intermittent cooling method, a fused tapered Photonic Crystal Fiber (PCF) interferometer is proposed. In the process of tapering, stop heating and wait for cooling at different taper length. Repeat heating and cooling, until taper goes to the expected length. Compared with the ordinary...

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Bibliographic Details
Published in:Journal of sensors 2016-01, Vol.2016 (2016), p.1-7
Main Authors: Ji, Yushen, Guo, Peng, Fu, Xinghu, Fu, Guangwei, Bi, Weihong
Format: Article
Language:English
Subjects:
Aqueous solutions
Cooling
Crystal fibers
Glycerols
Heating
Light
Optical properties
Photonic crystals
Science
Sensors
Spectra
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Summary:Based on the intermittent cooling method, a fused tapered Photonic Crystal Fiber (PCF) interferometer is proposed. In the process of tapering, stop heating and wait for cooling at different taper length. Repeat heating and cooling, until taper goes to the expected length. Compared with the ordinary fused tapered method, the fringe contrast of the transmission spectra of this sensor is 15.06 dB. The transmission spectra in different concentrations of glycerol solution are obtained, and the temperature cross-sensitivity of the sensor is studied. The experimental results show that as the external refractive index increases, the transmission spectra of the sensor shift to longer wavelength. In the measuring glycerol solution, the refractive index sensitivity of the sensor can achieve 797.674 nm/RIU, and the temperature sensitivity is only 0.00125 nm/°C.
ISSN:1687-725X
1687-7268
DOI:10.1155/2016/7353067