Patent EP0140820A2 successfully refreshed from Google Patents.
Patent US4813755A successfully refreshed from Google Patents.
US4813755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical fiber connection to an optical IC
Assignee: US Philips Corp
•
Filing: 1987-10-23
•
Granted: 1989-03-21
•
Expires: 2007-10-23
Abstract
Abstract To avoid production-technical and optical problems when connecting optical waveguides to conductor paths leading to the edge of the IC, the connection point is removed from the edge into the lateral face of the optical IC. In that region an optical conductor which extends in the interior of the IC and is connected to the waveguide embedded in the surface by overcoupling, is fed out from the IC.
Inventors
- 👤 Lothar Mannschke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:23
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
96 words
An arrangement for optically connecting an optical fibre to a planar waveguide embedded in the surface of an optical IC, wherein the optical fibre is butt-joined to a first planar waveguide which is arranged below the surface of the optical IC, the first planar waveguide extends in at least one region parallel to at least a second planar waveguide embedded in the surface of the optical IC and the first planar waveguide and the second planar waveguide embedded in the surface are interspaced by a distance at which optical overcoupling between the two planar waveguides occurs.
Claim 2
Dependent Claim
96 words
An arrangement for optically connecting an optical fibre to a planar waveguide embedded in the surface of an optical IC, wherein the optical fibre is butt-joined to a first planar waveguide which is arranged below the surface of the optical IC, the first planar waveguide extends in at least one region parallel to at least a second planar waveguide embedded in the surface of the optical IC and the first planar waveguide and the second planar waveguide embedded in the surface are interspaced by a distance at which optical overcoupling between the two planar waveguides occurs.
Claim 3
Dependent Claim
23 words
An arrangement as claimed in claim 1, wherein the first planar waveguide and the planar waveguide embedded in the surface contact each other.
Claim 4
Dependent Claim
25 words
An arrangement as claimed in claim 1, wherein the first planar waveguide and the second planar waveguide embedded in the surface partly penetrate each other.
Claim 5
Dependent Claim
32 words
An arrangement as claimed in claim 1, 2 or 3, wherein the first planar waveguide is fed out from an edge of the optical IC, where optical fibre connecting means are provided.
Claim 6
Dependent Claim
28 words
An arrangement as claimed in claim 1, wherein the first planar waveguide extends in parallel with further planar waveguides in several locations in surfaces of the optical IC.
Claim 7
Dependent Claim
23 words
An arrangement as claimed in claim 5, wherein the further planar waveguides are provided in different levels in surfaces of the optical IC.
Claim 8
Dependent Claim
23 words
An arrangement as claimed in claim 5, wherein the first planar waveguide extends parallel to planar waveguides which are arranged on facing surfaces.
References Cited (Backward Citations)
US3912363A
Cited
US3923373A
Cited
US3967877A
Cited
US4018506A
Cited
US4094579A
Cited
US4536058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-20 | 1992-09-19 | 1993-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-20 | 1996-09-19 | 1997-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-20 | 2000-09-19 | 2001-03-21 | $7700.00 | Window Closed / Lapsed |