Hollow core photonic bandgap optical fiber
AssigneeMicron Technology, Inc.
InventorsLeonard Forbes, Joseph E. Geusic
Life of this patent
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Abstract
A photonic crystal optical fiber made up of an array of conventional hollow core optical fibers is disclosed. The array of optical fibers omits at least one fiber to form a central hollow core. The fiber works on the principle of two-dimensional photonic crystals to confine the radiation in a guided wave within the central hollow core. The fiber has a true photonic bandgap in which radiation of a particular energy or wavelength is totally forbidden, thereby providing a very high reflection coefficient to radiation incident the walls of the central hollow core over a select range of angles. The central hollow core allows for radiation propagation with minimal absorption.
Claims22
A waveguide, including:
- a number of hollow core fibers arranged longitudinally around a hollow guide region;
- wherein the number of hollow core fibers are arranged as a two dimensional photonic crystal with a photonic bandgap;
- and
- wherein the hollow guide region includes geometry that is shaped to channel a signal frequency that is substantially within the photonic bandgap.
An optical signal transmission device, including:
- a number of hollow core fibers arranged longitudinally to define a hollow guide region surrounded by the number of hollow core fibers;
- wherein the number of hollow core fibers are arranged as a two dimensional photonic crystal with a photonic bandgap;
- and
- wherein the hollow guide region includes geometry that is shaped to channel an optical light frequency that is substantially within the photonic bandgap.
A signal transmission system, including:
- a signal generating source;
- an optical coupler;
- a waveguide, including:
- a number of hollow core fibers arranged longitudinally to define a hollow guide region enclosed by the number of hollow core fibers;
- wherein the number of hollow core fibers are arranged as a two dimensional photonic crystal with a photonic bandgap;
- wherein the hollow guide region includes geometry that is shaped to channel a signal frequency that is substantially within the photonic bandgap;
- and
- a photodetector.
A waveguide, including:
- a number of hollow core fibers arranged longitudinally to define a hollow guide region;
- wherein the number of hollow core fibers are arranged as a two dimensional wave channeling means;
- and
- wherein the hollow guide region includes geometry that is shaped to channel a signal frequency that is substantially contained within the channeling means.
A waveguide, including:
- a number of hollow tube shaped fibers arranged longitudinally around a hollow guide region;
- wherein the number of hollow tube shaped fibers are arranged as a two dimensional photonic crystal with a photonic bandgap;
- and
- wherein the hollow guide region includes geometry that is shaped to channel a signal frequency that is substantially within the photonic bandgap.
Dependencies are inferred from the claim text.