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Temperature measurement based on photonic crystal modal interferometer |
Jian LIU, Hao ZHANG( ), Bo LIU |
| Key Laboratory of Opto-Electronic Information and Technology, Ministry of Education, Institute of Modern Optics, Nankai University, Tianjin 300071, China |
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Abstract Based on the interferences between core modes and cladding modes in photonic crystal fiber (PCF), a novel temperature sensor is presented and experimentally demonstrated. The peak wavelength of the interference spectrum linearly increased with an increase in temperature. A measurement sensitivity of 10.38 pm/°C was experimentally achieved for temperatures ranging from 30°C to 100°C. Experimental results also indicate that the curvature and transverse load do not have a distinguishable influence on the transmission spectrum of the proposed fiber sensor, which ensures its applicability for practical applications.
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| Keywords
optical fiber sensor
temperature
photonic crystal fiber (PCF)
measurement
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Corresponding Author(s):
ZHANG Hao,Email:haozhang@nankai.edu.cn
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Issue Date: 05 December 2010
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