Title :
Modal analysis of optical fibers with symmetrically distributed nonuniform cores
Author :
Kishi, Naoto ; Tayama, Ken´ Ichi ; Yamashita, Eikichi
Author_Institution :
Dept. of Electron. Eng., Univ. of Electro-Commun., Tokyo, Japan
fDate :
8/1/1996 12:00:00 AM
Abstract :
This paper describes the modal analysis of optical fibers with symmetrically distributed multiple cores. Each core has an identical, axially symmetrical, and nonuniform refractive index profile. Group theoretical approach is applied to treat the symmetry of the waveguide structure. The point-matching method combined with the staircase-approximation method is used to take into account complex boundary conditions and complex refractive index distributions. The numerical computation based on this approach has been found to be very effective
Keywords :
approximation theory; boundary-value problems; optical fibre theory; refractive index; symmetry; axially symmetrical; complex boundary conditions; complex refractive index distributions; nonuniform refractive index profile; numerical computation; optical fiber modal analysis; optical fibre theory; point-matching method; staircase-approximation method; symmetrically distributed multiple cores; symmetrically distributed nonuniform cores; waveguide structure; Boundary conditions; Integral equations; Modal analysis; Numerical analysis; Optical fiber couplers; Optical fibers; Optical refraction; Optical waveguide theory; Optical waveguides; Refractive index;
Journal_Title :
Lightwave Technology, Journal of
