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US 7,809,224 B2Granted
Composite waveguide
AssigneeThe Regents of the University of Michigan
InventorAlmantas Galvanauskas
Life of this patent
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Abstract
A composite waveguide includes a central core configured to transmit a plurality of modes and at least one side core helically wound about the central core and configured to be selectively coupled to at least a portion of the plurality of modes in the central core.
Claims44
A composite waveguide, comprising:
- a central core that transmits a plurality of modes;
- and
- a side core helically wound about the central core, and selectively coupled over the entire length of the central core to at least a portion of the plurality of modes in the central core, wherein the azimuth position of the helically wound side core rotates along the axis of the central core.
A composite waveguide, comprising:
- a central core that transmits a plurality of modes;
- and
- a plurality of side cores helically wound about the central core and selectively coupled over the entire length of the central core to at least a portion of the plurality of modes in the central core, wherein the azimuth position of the plurality of helically wound side cores rotates along the axis of the central core.
A composite waveguide, comprising:
- a central core;
- a side core helically wound about the central core, the helically wound side core in optical proximity to the central core and selectively coupled to the central core over the entire length of the central core, the azimuth position of the helically wound side core rotating along the axis of the central core;
- and
- at least one stress filament helically wound about the central core, the at least one stress filament applying stress along the length of the central core in an azimuthally varying direction.
1 more element
Dependencies are inferred from the claim text.