Coupling apparatus for multimode infrared detectors
AssigneeThe United States of America as represented by the Secretary of Commerce
InventorErich Grossman
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Abstract
An optical coupling apparatus for a multimode infrared detector comprises a flux concentrator including a conical cavity, such as a Winston cone, having an entrance aperture for receiving infrared radiation and an exit aperture, and an integrating cavity in communication with the exit aperture of the conical cavity. A planar multimode antenna comprising a plurality of discrete antennas mounted on a silicon substrate is disposed within the integrating cavity so as to receive infrared radiation coupled into the integrating cavity through the exit aperture.
Claims20
An optical coupling apparatus for a multimode infrared detector, said coupling apparatus comprising a flux concentrator including a conical cavity having an entrance aperture for receiving infrared radiation and an exit aperture, and an integrating cavity in communication with the exit aperture of said conical cavity;
- and a multimode antenna mounted within said integrating cavity for receiving infrared radiation coupled into said integrating cavity through said exit aperture.
An optical coupler device for multimode infrared detectors, said device comprising:
- a flux concentrator for receiving infrared radiation and comprising a Winston cone having an entrance aperture and an exit aperture, and a integrating cavity coupled to said exit aperture of said Winston cone;
- and
- a planar multimode antenna array mounted within said integrating cavity for receiving infrared radiation coupled into said integrating cavity.
Dependencies are inferred from the claim text.