US3668536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light amplifier stages
Assignee: Alcatel Lucent SAS
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Filing: 1970-04-24
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Granted: 1972-06-06
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Expires: 1990-04-24
Abstract
Abstract The present invention concerns light amplifier stages in which the provision of a fully reflecting surface at the end of a conventional amplifier stage causes it to produce an amplifying effect equivalent to plural conventional stages.
Inventors
- 👤 Maurice Michon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:58
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/23; H01S3/2308; H01S3/2325; H01S3/2333; H01S3/10; H01S3/11; H01S3/1123; H01S3/121; H01S3/125; H01S3/2341
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
213 words
An amplifier stage for use in a light amplification system, wherein the light to be amplified consists of a beam of light generated in a direction along a first axis, said amplification stage comprising: a. a first selective polarizer means positioned along said first axis for conducting, in a direction along said first axis, light polarized in a first plane and for deflecting, in a direction along a second axis, light polarized in a second plane wherein said first and second planes are perpendicular; b. an electro-optical dephasing cell positioned along said first axis; c. a second selective polarizer means positioned along said axis for conducting, in a direction along said first axis, light polarized in said first plane and for deflecting, in a direction along a third axis, light polarized in said second plane; d. an active laser bar and a pumping means associated therewith positioned along said first axis; e. a first fully reflective means positioned along said first axis for reflecting a beam from said laser bar back through said laser bar in the opposite direction along said first axis; and f. a second fully reflective means positioned along said third axis for reflecting light deflected by said second selective polarizer means in the opposite direction along said third axis.
Claim 2
Dependent Claim
213 words
An amplifier stage for use in a light amplification system, wherein the light to be amplified consists of a beam of light generated in a direction along a first axis, said amplification stage comprising: a. a first selective polarizer means positioned along said first axis for conducting, in a direction along said first axis, light polarized in a first plane and for deflecting, in a direction along a second axis, light polarized in a second plane wherein said first and second planes are perpendicular; b. an electro-optical dephasing cell positioned along said first axis; c. a second selective polarizer means positioned along said axis for conducting, in a direction along said first axis, light polarized in said first plane and for deflecting, in a direction along a third axis, light polarized in said second plane; d. an active laser bar and a pumping means associated therewith positioned along said first axis; e. a first fully reflective means positioned along said first axis for reflecting a beam from said laser bar back through said laser bar in the opposite direction along said first axis; and f. a second fully reflective means positioned along said third axis for reflecting light deflected by said second selective polarizer means in the opposite direction along said third axis.
Claim 3
Dependent Claim
17 words
An amplifier stage as recited in claim 1 in which said electro-optical cell is a Pockels cell.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |