Modeling and simulation of fiber Bragg grating pressure sensor for underwater application

This paper includes design and simulation of high sensitivity Fiber Bragg Grating (FBG) sensor for pressure measurement under water. This paper involves simulation of a super structure FBG which is encapsulated with a polymercompletely- filled metal cylinder. An observation has been made to see the effect of polymer coating on the FBG for pressure sensitivity. The novel scheme of this analysis is to design a high sensitivity pressure sensor and simulate it using ANSYS, the FBG is designed using R-soft and MATLAB is used for plotting the change in the Braggs wavelength with application of the polymer.