US5228050A
Expired / Lapsed
US
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Integrated multiple-wavelength laser array
Assignee: Verizon Laboratories Inc
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Filing: 1992-02-03
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Granted: 1993-07-13
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Expires: 2012-02-03
Abstract
Abstract A monolithically integrated multiple-wavelength laser structure includes an array of lasing structures each having a cavity length chosen to correspond to a desired lasing wavelength. The array is suitable for use as a transmitter in a wavelength division multiplexing communication system. The lasing structures preferably include quantum well active regions.
Inventors
- 👤 Joanne LaCourse
- 👤 Robert B. Lauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:43
CPC Classifications
H; H01; H01S; H01S5/00; H01S5/40; H01S5/4025; H01S5/4031; H01S5/10; H01S5/1039; H01S5/4087
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
26 words
A semiconductor structure, comprising: a plurality of optically independent, monolithically integrated semiconductor lasers; wherein each laser has a cavity length corresponding to a desired lasing wavelength.
Claim 2
Dependent Claim
26 words
A semiconductor structure, comprising: a plurality of optically independent, monolithically integrated semiconductor lasers; wherein each laser has a cavity length corresponding to a desired lasing wavelength.
Claim 3
Dependent Claim
16 words
The structure as recited in claim 1 wherein: each of said lasers is a Fabry-Perot laser.
Claim 4
Dependent Claim
17 words
The structure as recited in claim 2 wherein each Fabry-Perot laser includes: a quantum well active region.
Claim 5
Dependent Claim
19 words
The structure as recited in claim 3 wherein each quantum well active region includes: a multiple quantum well structure.
Claim 6
Dependent Claim
23 words
The structure as recited in claim 4 wherein each multiple quantum well structure includes: InGaAs quantum well layers alternating with InGaAsP barrier layers.
Claim 7
Dependent Claim
19 words
The structure as recited in claim 3 wherein each quantum well active region includes: a single quantum well structure.
Claim 8
Dependent Claim
40 words
A multiple-wavelength laser array, comprising: a plurality of optically independent, monolithically integrated semiconductor lasing structures; wherein each lasing structure is a Fabry-Perot laser having a quantum well active region, and having a cavity length corresponding to a desired lasing wavelength.
Claim 9
Dependent Claim
40 words
A multiple-wavelength laser array, comprising: a plurality of optically independent, monolithically integrated semiconductor lasing structures; wherein each lasing structure is a Fabry-Perot laser having a quantum well active region, and having a cavity length corresponding to a desired lasing wavelength.
Claim 10
Dependent Claim
38 words
A transmitter in a wavelength division multiplexing communication system, comprising: a plurality of optically independent, monolithically integrated semiconductor lasing structures; wherein each lasing structure is a Fabry-Perot laser having a cavity length corresponding to a desired lasing wavelength.
Claim 11
Dependent Claim
38 words
A transmitter in a wavelength division multiplexing communication system, comprising: a plurality of optically independent, monolithically integrated semiconductor lasing structures; wherein each lasing structure is a Fabry-Perot laser having a cavity length corresponding to a desired lasing wavelength.
Claim 12
Dependent Claim
17 words
The transmitter as recited in claim 8 wherein each lasing structure includes: a quantum well active region.
Claim 13
Dependent Claim
19 words
The transmitter as recited in claim 9 wherein each quantum well active region includes: a multiple quantum well structure.
Claim 14
Dependent Claim
19 words
The transmitter as recited in claim 9 wherein each quantum well active region includes: a single quantum well structure.
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) | 1996-07-12 | 1997-01-11 | 1997-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-12 | 2001-01-11 | 2001-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-12 | 2005-01-11 | 2005-07-13 | $7700.00 | Window Closed / Lapsed |