Title :
Polymer Optical Fiber Temperature Sensor With Dual-Wavelength Compensation of Power Fluctuations
Author :
Tapetado, A. ; Pinzon, P.J. ; Zubia, J. ; Vazquez, C.
Author_Institution :
Electron. Technol. Dept., Univ. Carlos III de Madrid, Leganés, Spain
Abstract :
The design and development of a plastic optical fiber macrobend temperature sensor is presented. The sensor can operate in a temperature range from -55 to 70 °C and has a linear response versus temperature with a sensitivity of 8.95·10-4 °C-1. The sensor system uses the ratio of transmittance at two wavelengths to implement a self-referencing technique in order to avoid undesirable power fluctuations influence. The transmittance ratio precision is 0.1%. An analysis has been developed to find the two wavelengths which ratio offers the highest linearity and sensitivity response. Experimental results are successfully compared with theoretical approaches.
Keywords :
fibre optic sensors; light transmission; optical design techniques; optical fibre fabrication; optical fibre testing; optical polymers; temperature measurement; temperature sensors; dual-wavelength compensation; optical transmittance ratio precision; plastic optical fiber macrobend temperature sensor; polymer optical fiber temperature sensor; power fluctuations; self-referencing technique; temperature -55 degC to 70 degC; Light sources; Optical fiber sensors; Optical fibers; Sensitivity; Temperature measurement; Temperature sensors; Wavelength measurement; Bend loss; Intensity; POF Sensor; POF sensor; Temperature; WDM; intensity; loop; macro-bend; self-referencing technique; temperature;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2015.2408368
