LIGHT TRACKS IN THE ANISOTROPIC OPTICAL FIBER WITH TWO TYPES OF PARABOLIC REFRACTIVE INDICES

The light tracks in an anisotropic optical fiber are studied by the optical metric model. The ordinary and extraordinary light tracks are determined by solving the null geodesic equation. In the paraxial approximation the birefringence of the fiber is analyzed. The focusing and defocusing characte ristics of a light beam are described via the geodesic deviation equation