Title :
Analysis of curved D-fiber for methane gas sensing
Author :
Muhammad, F.A. ; Al-Raweshidy, H.S. ; Senior, J.M.
Author_Institution :
Dept. of Electr. & Electron. Eng., Manchester Metropolitan Univ., UK
fDate :
5/1/1995 12:00:00 AM
Abstract :
This paper investigates theoretically the change in sensitivity due to pure bending in a D-fiber methane gas sensor. Loss calculations are obtained by employing the finite difference technique with the aid of perturbation theory. The curved D-fiber with a step index distribution is transformed into an equivalent straight D-fiber with a graded index distribution using conformal transformation.<>
Keywords :
bending; fibre optic sensors; finite difference methods; gas sensors; optical fibre losses; refractive index; sensitivity analysis; conformal transformation; curved D-fiber; fibre bending; finite difference technique; graded index distribution; loss calculations; methane gas sensing; perturbation theory; sensitivity; step index distribution; Electromagnetic waveguides; Finite difference methods; Gas detectors; Geometry; Optical fiber polarization; Optical fiber sensors; Optical losses; Optical waveguides; Planar waveguides; Refractive index;
Journal_Title :
Photonics Technology Letters, IEEE
