Patent US4200846A successfully refreshed from Google Patents.
US4200846A
Expired / Lapsed
US
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Efficient laser amplifier using sequential pulses of different wavelengths
Assignee: United States Department of Energy
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Filing: 1977-09-29
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Granted: 1980-04-29
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Expires: 1997-09-29
Abstract
Abstract A laser oscillator output pulse is separated into a plurality of separate beams which are temporally or spatially individually amplified by a power amplifier. The beams may then be recombined to provide a more powerful output than conventional single beam amplification.
Inventors
- 👤 Eugene E. Stark, Jr.
- 👤 John F. Kephart
- 👤 Wallace T. Leland
- 👤 Walter H. Reichelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:25
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/23; H01S3/2308; H01S3/2316
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A laser power amplifying device comprising: a laser oscillator generating a pulse train having a plurality of discrete frequencies; laser power amplifier means for amplifying said pulse train; frequency splitting means for separating each of said discrete frequencies into an individual beam; delay means in each of said beams; and, combining means for combining said delayed beams into a single pulse.
Claim 2
Dependent Claim
61 words
A laser power amplifying device comprising: a laser oscillator generating a pulse train having a plurality of discrete frequencies; laser power amplifier means for amplifying said pulse train; frequency splitting means for separating each of said discrete frequencies into an individual beam; delay means in each of said beams; and, combining means for combining said delayed beams into a single pulse.
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) | 1983-04-29 | 1983-10-29 | 1984-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-29 | 1987-10-29 | 1988-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-29 | 1991-10-29 | 1992-04-29 | $7700.00 | Window Closed / Lapsed |