Fiber optic dielectric waveguide structure for modal mutliplexed communication and method of manufacture

An optical modal multiplexed fiber optic system, comprising:

• at least one optical source;
• at least one photodetector;
• an optical fiber having a longitudinal axis, said optical fiber comprising a first end a second end, a core, and a cladding;
• wherein said core and said cladding are cylindrically shaped and coaxially disposed along said longitudinal axis, and wherein said core is defined as having a first index of refraction and said cladding is defined as having a second index of refraction, and wherein said core is further defined by a cross section having a radius, and wherein said cladding is further defined as being concentrically disposed about said core and having a cross section defined as a ring having an inner cladding radius and an outer cladding radius, said cladding thickness being defined as the difference between said inner cladding radius and an outer cladding radius;
• and
• wherein said first end and said second end further comprise a truncated cylindrical wedge structure, said truncated wedge structure comprising a first planar surface disposed at an angle to said longitudinal axis of said fiber forming a cylindrical wedge, and said truncated wedge structure further comprising a second planar surface perpendicular to said longitudinal axis, said second planar surface truncating said cylindrical wedge and said second planar surface forming a lip of said cylindrical wedge, said lip having a height;
• and
• wherein said at least one source is in optical communication with said first end of said optical fiber and is disposed to excite either a standing wave mode or linearly polarized mode in said optical fiber;
• and
• wherein said at least one photodetector is in optical communication with said second end of said optical fiber and is disposed to receive either a radiated standing wave or radiated linearly polarized wave radiated by said second end of said optical fiber.