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US 2001/0055443 A1Published application
Integration of fibers on substrates fabricated with grooves
AssigneeOluma, Inc.
InventorsShulai Zhao, Bo Pi
Life of this patent
Estimating the term…
Abstract
Techniques and devices for integrating optical fibers on substrates with grooves for various optical applications. Two openings that penetrate through the substrate are formed at both ends of each groove to allow a fiber to pass from one side of substrate to another side. The fiber cladding of a fiber portion positioned in the groove can be removed to produce an optical coupling port.
Claims49
A device, comprising:
- a substrate having first and second opposing substrate surfaces to form a first elongated groove formed over said first substrate surface and first and second openings respectively formed at two ends of said first elongated groove, each opening formed through said substrate to extend between said first and second substrate surfaces;
- and
- an optical fiber, which comprises a fiber core and a fiber cladding surrounding said fiber core, passing through said first and second openings and having at least first, second, and third contiguous fiber portions, wherein said second fiber portion is disposed in said first elongated groove on said first substrate surface, and said first and said third fiber portions located on or over said second substrate surface.
A method, comprising:
- providing a substrate having first and second opposing substrate surfaces;
- processing said substrate to form an elongated groove over said first substrate surface;
- forming two openings respectively at two ends of said elongated groove and through said substrate to extend between said first and second substrate surfaces;
- and
- threading an optical fiber through said two openings to place a portion of said fiber in said elongated groove on said first substrate surface and to place two adjacent portions of said fiber on two ends of said portion on said second substrate surface.
2 more elements
A device, comprising:
- first and second substrates, each substrate having first and second opposing substrate surfaces to include an elongated groove formed over said first substrate surface and two openings respectively formed at two ends of said elongated groove that go through said substrate to extend between said first and second substrate surfaces;
- a first optical fiber passing through said two openings in said first substrate to have a fiber portion positioned in said elongated groove in which a portion of fiber cladding is removed to form a first optical coupling port;
- and
- a second optical fiber passing through said two openings in said second substrate to have a fiber portion positioned in said elongated groove in which a portion of fiber cladding is removed to form a second optical coupling port,
- wherein said first substrate surfaces of said first and said second substrates are positioned to face each other to allow evanescent coupling between said first and said second optical fibers through said first and second optical coupling ports.
2 more elements
A device, comprising:
- a substrate having first and second opposing substrate surfaces and first, second, and third openings that are spaced from one another and go through said substrate to extend between said first and said second substrate surfaces;
- a first groove formed over said first substrate surface between said first and second openings to have a first end connected to said first opening and a second end connected to said second opening;
- a second groove formed over said second substrate surface between said second and third openings to have a first end connected to said second opening and a second end connected to said third opening;
- and
- an optical fiber engaged to said substrate by passing through said first, second, and third openings in said substrate to have a first fiber portion positioned in said first groove and a second fiber portion positioned in said second groove.
2 more elements
A device, comprising:
- a substrate having first and second opposing substrate surfaces;
- a first elongated groove formed over said first substrate surface;
- and
- first and second openings respectively formed at two ends of said first elongated groove, each opening formed through said substrate to extend between said first and second substrate surfaces.
1 more element
Dependencies are inferred from the claim text.