Title :
Side-Polished Microstructured Optical Fiber for Temperature Sensor Application
Author :
Franco, Marcos A R ; Serrão, Valdir A. ; Sircilli, Francisco
Author_Institution :
Inst. de Estudos Avancados, Sao Jose dos Campos
Abstract :
We propose new microstructured optical fiber (MOF) designs for temperature sensing applications. Such fiber designs consist of a side-polished MOF with the flat side coated with a large thermooptic coefficient external medium. Numerical analysis based on a full-vector finite-element method with a perfectly matched layer was applied to evaluate the power loss caused by the evanescent field going through the external medium. Our calculations demonstrate that it is possible to change the sensor sensitivity by selecting an adequate microstructured fiber geometry. Also, different external media can be used to shift the operational range of temperature sensing.
Keywords :
fibre optic sensors; finite element analysis; temperature sensors; evanescent field; fiber designs; full-vector finite-element method; microstructured fiber geometry; microstructured optical fiber designs; numerical analysis; power loss; sensor sensitivity; side-polished microstructured optical fiber; temperature sensing; temperature sensor; thermooptic coefficient external medium; Finite element methods; Geometry; Numerical analysis; Optical design; Optical fiber sensors; Optical fibers; Optical losses; Perfectly matched layers; Photonic crystal fibers; Temperature sensors; D-fiber; optical fiber sensor; temperature sensor;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.905654
