Patent US5035358A successfully refreshed from Google Patents.
US4836633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical connecting arrangements
Assignee: GEC-MARONI Ltd
•
Filing: 1986-03-24
•
Granted: 1989-06-06
•
Expires: 2006-03-24
Abstract
Abstract An optical connecting arrangement is provided between an optical device and an optical fibre in which the optical device is mounted with positional precision on a substrate which is fabricated for locating one end of a so-called grin rod lens in precise optical alignment with the active surface of the optical device and in which the other end of the same grin rod lens or the corresponding end of a further grin rod lens coupled to it has the optical fibre optically coupled thereto in optical alignment.
Inventors
- 👤 Peter J. Morgan
- 👤 Andrew C. Carter
- 👤 Richard Davis
- 👤 Frederick A. Randle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:55
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4249; G02B6/4204; G02B6/421; G02B6/4248
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
131 words
An optical coupling arrangement between an optical device and an optical fibre, comprising an optically transparent substrate to one surface of which the optical device is attached by means of an array of boned connections made between corresponding precisely positioned metal bonding pads provided on the optical device and substrate, the other surface of the substrate having formed therein a cylindrical recess located in precise positional relationship with the boned connections between the optical device and the substrate and receiving one end of a GRIN rod lens so that the end of the lens is located in very close proximity and centralized with respect to an active surface of the optical device, the other end of the GRIN rod lens having the optical fibre coupled thereto in abutting precise optical alignment.
Claim 2
Dependent Claim
131 words
An optical coupling arrangement between an optical device and an optical fibre, comprising an optically transparent substrate to one surface of which the optical device is attached by means of an array of boned connections made between corresponding precisely positioned metal bonding pads provided on the optical device and substrate, the other surface of the substrate having formed therein a cylindrical recess located in precise positional relationship with the boned connections between the optical device and the substrate and receiving one end of a GRIN rod lens so that the end of the lens is located in very close proximity and centralized with respect to an active surface of the optical device, the other end of the GRIN rod lens having the optical fibre coupled thereto in abutting precise optical alignment.
Claim 3
Dependent Claim
37 words
An optical coupling arrangement as claimed in claim in 1, in which the metallic bonding pads on the optical device and substrate include solder to facilitate solder reflow self-alignment bonding of the optical device to the substrate.
Claim 4
Dependent Claim
77 words
An optical coupling arrangement as claimed in claim 1, in which the GRIN rod lens is enclosed within a close fitting ferrule, one end of which is a precise fit in the cylindrical recess of the substrate, in which the ferrule is bonded to the substrate and in which the optical fibre is held centrally within a cylindrical guide member which is a precise fit in the other end of the ferrule containing the GRIN rod lens.
Claim 5
Dependent Claim
77 words
An optical coupling arrangement as claimed in claim 2, in which the GRIN rod lens is enclosed within a close fitting ferrule, one end of which is a precise fit in the cylindrical recess of the substrate, in which the ferrule is bonded to the substrate and in which the optical fibre is held centrally within a cylindrical guide member which is a precise fit in the other end of the furrule containing the GRIN rod lens.
References Cited (Backward Citations)
US4427879A
Cited
US4357072A
Cited
US4186995A
Cited
US4307934A
Cited
FR2428328A1
Cited
JPS55113005A
Cited
US4383731A
Cited
GB2086074A
Cited
JPS5769792A
Cited
US4653847A
Cited
JPS58145909A
Cited
JPS58184911A
Cited
JPS59160116A
Cited
US4575194A
Cited
US4658130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |