Dependence of Jones matrix elements of fiber on polarization mode coupling due to torsion

Abstract

The aim of this paper is contribution to understanding of coupling between the polarization modes on the resultant transfer properties of single mode fiber given by the Jones matrix. In the case of ideal fiber it is possible to describe a propagation of the polarized optical wave by the Jones matrix and corresponding polarization eigenmodes with different propagation described by the Jones matrix are given not by the eigenmodes but by the principal states of polarization. Defined disturbance by the Jones matrix are given not by the eigenmodes but by the principal states of polarization. Defined disturbance along the whole fiber and also relatively defined variable coupling between the polarization modes it is possible to obtain by the torsion of fiber. Experimental evaluation of torsion effect by the Jones matrix elements can define the boundaries of application theory of polarization eigenmodes and principal states of polarization. These results can also contribute to understanding of conditions for polarization preserving of fiber and the development of polarization dispersion during disturbance of propagation conditions. Jones matrix elements have been measured on the working place published before and calculation and optimization of result are done by the use of software made for this purpose with the application of quaternions.