A method for modeling of multiply purturbed fibers was developed as an extension to the modified coupled-mode method. Being based on numerical solution of coupled mode equations, the method is not limited in the scope of its applications to the cases in which coupling coefficients are constant along the fiber. Short computation time was achieved as a result of modification to the solved coupled-mode equations. Presented method was developed as a design tool for polarimetric optical fiber sensors. The use of the method is demonstrated on an example of a twisted single-mode elliptic-core fiber subjected to pure bending. Moreover, it was shown that the presented method can be also applied to visibility calculation in polarimetric sensors using polychromatic sources.

Date Published: 14 April 2003
PDF: 8 pages
Proc. SPIE 5028, Optical Fibers and Their Applications VIII, (14 April 2003); doi: 10.1117/12.497729

Published in SPIE Proceedings Vol. 5028:
Optical Fibers and Their Applications VIII
Jan Dorosz; Ryszard S. Romaniuk, Editor(s)