THEORETICAL COMPARISON BETWEEN POLARIZATION MODE DISPERSION AND BIREFRINGENCE VECTORS IN SINGLE MODE FIBERS

The polarization mode dispersion, τ , and birefringence,β , vectors have the same meaning in a certain cases, but in general they are different. In this paper, we introduce a new theoretical comparison between these two vectors through the propagation in optical fibers. The parameters; the angle between τ and β , and the value of β depend on the adopted form of the vector β . In addition, the value of τ depend on the number of orders that is used to for account the vector τ . We introduce also a new formula of the dynamical polarization mode dispersion equation which contains the circular birefringence and the higher orders of the vector τ .