Arthur A Jordan

US Patent:

49616188, Oct 9, 1990

Filed:

Jun 5, 1989

Appl. No.:

7/361078

Inventors:

Arthur K. Jordan - Alexandria VA
S. Lakshmanasamy - Dallas TX

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

G02B 610

US Classification:

350 9612

Abstract:

This invention relates to an improved optical communication system having an enhanced wide-core single-mode planar waveguide for transmitting a single-mode light wave in a unique manner. The system is generally made up of light-wave source means, the aforementioned waveguide and receiving means. The waveguide is generally made up of an inhomogeneous wide-core means of block-like configuration and opposed cladding means where one set of opposed sides of the waveguide are provided with the cladding means. The cladding means has a constant permittivity. The core means has an inhomogeneous permittivity profile, a part of which is greater than the cladding means permittivity and another part of which is less than the cladding means permittivity. The analogy of quantum mechanics with optics can provide an algorithm for an equivalent inhomogeneous quantum potential formula of curvilinear shape. This equivalent quantum potential can be computer solved and graphically plotted in relation to a multipole rational function for the transverse reflection coefficient for the intended propagating and radiating modes of the waveguide, all for advantageously determining the width and permittivity profile of the core means.