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USH738H
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Switched holograms for reconfigurable optical interconnect
Assignee: United States Department of the Army
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Filing: 1989-07-17
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Granted: 1990-02-06
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Expires: 2009-07-17
Abstract
Abstract A device that provides reconfigurable optical interconnections of multipleata channels that have applications in highly parallel computers. The device utilizes an array of optical switches which direct a set of optical beams toward any one of a selection of holograms and each hologram when selected deflects the input beams toward a detector.
Inventors
- 👤 J. Barry McManus
- 👤 Roger S. Putnam
- 👤 H. John Caulfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:06
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/32; G02B26/00; G02B26/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
A Holoswitch comprising a switch array of a multiplicity of optical switches, said optical switches each including a liquid crystal cell and a polarizing beamsplitter, said switch array of said multiplicity of switches having said multiplicity of switches arranged for receiving a plurality of parallel optical beams and for directing the beams as a set toward a selected row of several rows formed by switches of said switch array, each switch of said several rows of said switch array having an output face through which said optical parallel beams can be projected to holographic spots of a hologram plate located adjacent said output face, and said optical face further projecting said beams from the holographic spots to detector means.
Claim 2
Dependent Claim
119 words
A Holoswitch comprising a switch array of a multiplicity of optical switches, said optical switches each including a liquid crystal cell and a polarizing beamsplitter, said switch array of said multiplicity of switches having said multiplicity of switches arranged for receiving a plurality of parallel optical beams and for directing the beams as a set toward a selected row of several rows formed by switches of said switch array, each switch of said several rows of said switch array having an output face through which said optical parallel beams can be projected to holographic spots of a hologram plate located adjacent said output face, and said optical face further projecting said beams from the holographic spots to detector means.
Claim 3
Dependent Claim
53 words
A Holoswitch as set forth in claim 1, wherein said switch array has 3 input switches aligned in series and 9 output switches that are arranged in 3 rows of 3 switches each with the input, switches having an output face that is 90 degrees with respect to inputs of said input switches.
Claim 4
Dependent Claim
20 words
A Holoswitch as set forth in claim 1, wherein said plurality of parallel optical beams is four parallel optical beams.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |