US4431261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber optic splitter
Assignee: U S Holding Co Inc
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Filing: 1981-05-06
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Granted: 1984-02-14
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Expires: 2001-05-06
Abstract
Abstract An improved electro-optical device to multiple fiber splitter coupling arrangement comprising an electro-optical device having a light emitting region, a plurality of optical fibers each having a core and a cladding, the fibers being fused together and drawn to form a taper, the taper having a light receiving end, and means for securing the taper to the electro-optical device such that the light receiving end is optically coupled to the light emitting region.
Inventors
- 👤 Carrie L. Kozikowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:29
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4202
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
150 words
An improved electro-optical device to multiple fiber splitter coupling arrangement comprising: an electro-optical device having a light emitting region, a multiple fiber splitter comprising a plurality of optical fibers each having a core and a cladding, said fibers being connected together with their claddings adjacent each other and having a tapered region so that the core diameter in the tapered region is less than the core diameter in the untapered region, said tapered region having a generally planar end face, the area of which is larger than the area of said light emitting device, said electro-optical device being positioned adjacent to said multiple fiber splitter with said light emitting region being directly adjacent to and separated from said generally planar end face so that light from said light emitting region is transmitted directly to said generally planar end face where it impinges on said cores for transmission along said fibers.
Claim 2
Dependent Claim
150 words
An improved electro-optical device to multiple fiber splitter coupling arrangement comprising: an electro-optical device having a light emitting region, a multiple fiber splitter comprising a plurality of optical fibers each having a core and a cladding, said fibers being connected together with their claddings adjacent each other and having a tapered region so that the core diameter in the tapered region is less than the core diameter in the untapered region, said tapered region having a generally planar end face, the area of which is larger than the area of said light emitting device, said electro-optical device being positioned adjacent to said multiple fiber splitter with said light emitting region being directly adjacent to and separated from said generally planar end face so that light from said light emitting region is transmitted directly to said generally planar end face where it impinges on said cores for transmission along said fibers.
Claim 3
Dependent Claim
31 words
An electro-optical device to multiple fiber splitter arrangement as claimed in claim 1 wherein the core of said fibers has a taper diameter ratio of between about 10:1 and about 2:1.
Claim 4
Dependent Claim
27 words
An electro-optical device to multiple fiber splitter arrangement as claimed in claim 1 wherein a 3 fiber taper has a length of less than about 1 inch.
Claim 5
Dependent Claim
47 words
An electro-optical device to multiple fiber splitter arrangement as claimed in claim 1 further including a rigid plate positioned adjacent said multiple fiber splitter for positioning said splitter adjacent to said electro-optical device, said plate being held in position by one of an epoxy and an adhesive.
Claim 6
Dependent Claim
46 words
An electro-optical device to multiple fiber splitter arrangement as claimed in claim 1 further comprising a tube positioned around said multiple fiber splitter for positioning said splitter adjacent to said electro-optical device, said tube being held in position by one of an epoxy and an adhesive.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-13 | 1987-08-15 | 1988-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-13 | 1991-08-15 | 1992-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-13 | 1995-08-15 | 1996-02-14 | $7700.00 | Window Closed / Lapsed |