Title :
Transmission characteristics of a coaxial optical fiber line
Author :
Mahmoud, Samir F. ; Kharbat, A.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Kuwait Univ., Safat, Kuwait
fDate :
11/1/1993 12:00:00 AM
Abstract :
A coaxial optical fiber line is proposed and studied as a long-distance transmission medium. The radial structure consists of a core surrounded by two clads. The inner clad has higher refractive index than the core and the outer clad. Guided modes are thus characterized by a concentrated field in the inner clad and evanescent fields in both the core and the outer clad. Using a rigorous modal analysis, characteristic curves for a monomode coaxial fiber line are presented. It is shown that the zero-dispersion wavelength can be placed at any desired value by proper choice of the refractive index contrast and the fiber dimensions. The proposed coaxial line compares well with the known W-profiled line with respect to ease of manufacture and dispersion characteristics
Keywords :
claddings; optical dispersion; optical fibre theory; refractive index; W-profiled line; characteristic curves; coaxial optical fiber line; dispersion characteristics; evanescent fields; fiber dimensions; fibre cladding; fibre core; guided modes; inner cladding; long-distance transmission medium; manufacture; monomode coaxial fiber line; outer cladding; radial structure; refractive index; refractive index contrast; rigorous modal analysis; transmission characteristics; zero-dispersion wavelength; Coaxial components; Copper; Equations; Geometry; Manufacturing; Modal analysis; Optical fiber dispersion; Optical fiber polarization; Optical fibers; Refractive index;
Journal_Title :
Lightwave Technology, Journal of
