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US3668536A Expired / Lapsed US ⏱️ 0.0 years remaining

Light amplifier stages

Assignee: Alcatel Lucent SAS
•
Filing: 1970-04-24
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Granted: 1972-06-06
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Expires: 1990-04-24
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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 08:14
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)

US3407364A Cited
US3453559A Cited
US3518436A Cited
US3514709A Cited
US3533015A Cited

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

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