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US5359447A
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Optical communication with vertical-cavity surface-emitting laser operating in multiple transverse modes
Assignee: Avago Technologies International Sales Pte Ltd
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Filing: 1993-06-25
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Granted: 1994-10-25
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Expires: 2013-06-25
Abstract
Abstract An optical communication system using a relatively large-area vertical-cavity surface-emitting laser. The laser has an opening larger than about eight micrometers and is coupled to a multimode optical fiber. The laser is driven into multiple transverse mode operation, which includes multiple filamentation as well as operation in a single cavity.
Inventors
- 👤 Kenneth H. Hahn
- 👤 Michael R. T. Tan
- 👤 Shih-Yuan Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:58
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/10; H01S5/18; H01S5/183; H01S5/18305; H04; H04B; H04B10/00; H04B10/25; H04B10/2581; H01S5/18308; H01S5/18361; H01S5/18375; H01S5/18377; H01S5/20; H01S5/2054; H01S5/2059; H01S5/2063
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
96 words
An optical communication network comprising: a vertical-cavity, surface-emitting semiconductor laser structure having an aperture larger than eight micrometers through which an optical signal may be emitted; a power supply that provides a bias current to drive the laser into a multiple transverse mode of Operation in which the laser is responsive to a signal carrying data to provide an optical signal modulated with the data and to emit the optical signal through the aperture; and a multimode Optical medium optically coupled to the laser to carry the optical signal from the laser to a remotely-located receiver.
Claim 2
Dependent Claim
96 words
An optical communication network comprising: a vertical-cavity, surface-emitting semiconductor laser structure having an aperture larger than eight micrometers through which an optical signal may be emitted; a power supply that provides a bias current to drive the laser into a multiple transverse mode of Operation in which the laser is responsive to a signal carrying data to provide an optical signal modulated with the data and to emit the optical signal through the aperture; and a multimode Optical medium optically coupled to the laser to carry the optical signal from the laser to a remotely-located receiver.
Claim 3
Dependent Claim
28 words
A network as in claim 1 and further comprising a receiver, optically coupled to the optical medium, that receives the modulated optical signal and recovers the data therefrom.
Claim 4
Dependent Claim
20 words
A network as in claim 1 wherein the multiple transverse mode of operation comprises more than two distinct transverse modes.
Claim 5
Dependent Claim
16 words
A network as in claim 1 wherein the multiple transverse mode of operation comprises multiple filamentation.
Claim 6
Dependent Claim
15 words
A network as in claim 1 wherein the multi-mode optical medium comprises an optical fiber.
Claim 7
Dependent Claim
15 words
A network as in claim 1 wherein the multi-mode optical medium comprises an optical waveguide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-10-24 | 1998-04-25 | 1998-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-24 | 2002-04-25 | 2002-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-24 | 2006-04-25 | 2006-10-25 | $7700.00 | Window Closed / Lapsed |