Bandwidth Characteristics of FBG Sensors for Oil and Gas Applications

Hisham K. Hisham^1,

¹Electrical Engineering Department, Faculty of Engineering, Basra University, Basra, Iraq

Cite this paper:
Hisham K. Hisham. Bandwidth Characteristics of FBG Sensors for Oil and Gas Applications. American Journal of Sensor Technology. 2017; 4(1):30-34. doi: 10.12691/ajst-4-1-4

Abstract

In this paper we perform a numerical analysis of fiber Bragg grating (FBG) bandwidth characteristics for oil and gas sensing applications. It is shown that the grating length (L_g) and the change in the refractive index profile (δ_n) represent a key parameters in contributing to high FBG sensor performance. The analysis based on solving coupled mode equations were carried out using MATHCAD software. Results show that the changes in the L_g and δn affect the FBG bandwidth significantly at a time when demand for bandwidth is growing in oil and gas sensing applications. The obtained results are very important for FBG sensor applications.

Keywords:
coupled-mode equations fiber Bragg grating (FBG) FWHM reflectivity oil and gas sensing

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