US5243671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser-to-fiber coupling apparatus
Assignee: Verizon Laboratories Inc
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Filing: 1991-12-31
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Granted: 1993-09-07
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Expires: 2011-12-31
Abstract
Abstract An apparatus for coupling light from a laser chip into an unetched and uncoated optical fiber includes a substrate carrier having a V-groove extending axially through the substrate carrier. The fiber has a beveled end with an inner and outer face and is positionable in the plane of the laser chip within the V-groove such that light emitted by the laser chip strikes the inner face of the beveled end and is totally internally reflected into the fiber core.
Inventors
- 👤 Emil S. Koteles
- 👤 Paul Melman
- 👤 Barbara Foley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:23
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4202; G02B6/4203; G02B6/4204; G02B6/4214
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
87 words
A coupling apparatus, comprising: light-emitting source in a fixed position on a substrate carrier; said substrate carrier having a V-groove extending through said substrate carrier; and a fiber having a beveled end with an inner and outer face; said fiber being positionable in the plane of the light-emitting source within said V-groove such that light emitted from said light-emitting source propogates without obstruction before impinging on the cylindrically shaped inner face of said beveled end and is totally internally reflected by said beveled end into said fiber.
Claim 2
Dependent Claim
87 words
A coupling apparatus, comprising: light-emitting source in a fixed position on a substrate carrier; said substrate carrier having a V-groove extending through said substrate carrier; and a fiber having a beveled end with an inner and outer face; said fiber being positionable in the plane of the light-emitting source within said V-groove such that light emitted from said light-emitting source propogates without obstruction before impinging on the cylindrically shaped inner face of said beveled end and is totally internally reflected by said beveled end into said fiber.
Claim 3
Dependent Claim
15 words
The coupling apparatus as recited in claim 1 wherein said light-emitting source is a diode.
Claim 4
Dependent Claim
15 words
The coupling apparatus as recited in claim 1 wherein said light-emitting source is a laser.
Claim 5
Dependent Claim
13 words
The coupling apparatus as recited in claim 1 wherein said fiber is single-mode.
Claim 6
Dependent Claim
13 words
The coupling apparatus as recited in claim 1 wherein said fiber is multimode.
Claim 7
Dependent Claim
18 words
The coupling apparatus as recited in claim 1 wherein said fiber is beveled at a 45 degree angle.
Claim 8
Independent Claim
74 words
An apparatus for coupling light from a light-generating chip into a fiber having a beveled end with an inner and outer face, comprising: a substrate carrier attached having a V-groove space extending through said substrate carrier, wherein said fiber is positioned in the plane of said light-generating chip within said V-groove such that light emitted by said chip strikes the inner face of said beveled end and is totally internally reflected into said fiber.
Claim 9
Independent Claim
74 words
An apparatus for coupling light from a light-generating chip into a fiber having a beveled end with an inner and outer face, comprising: a substrate carrier attached having a V-groove space extending through said substrate carrier, wherein said fiber is positioned in the plane of said light-generating chip within said V-groove such that light emitted by said chip strikes the inner face of said beveled end and is totally internally reflected into said fiber.
Claim 10
Dependent Claim
14 words
The apparatus as recited in claim 7 wherein said light-generating chip is a diode.
Claim 11
Dependent Claim
15 words
The coupling apparatus as recited in claim 7 wherein said light-generating chip is a laser.
Claim 12
Dependent Claim
13 words
The coupling apparatus as recited in claim 7 wherein said fiber is single-mode.
Claim 13
Dependent Claim
13 words
The coupling apparatus as recited in claim 7 wherein said fiber is multimode.
Claim 14
Dependent Claim
18 words
The coupling apparatus as recited in claim 7 wherein said fiber is beveled at a 45 degree angle.
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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) | 1996-09-06 | 1997-03-08 | 1997-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-06 | 2001-03-08 | 2001-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-06 | 2005-03-08 | 2005-09-07 | $7700.00 | Window Closed / Lapsed |