Amplifiers – Parametric amplifiers – Semiconductor type
Patent
1982-01-26
1985-04-16
Moskowitz, Nelson
Amplifiers
Parametric amplifiers
Semiconductor type
372 2, 372 69, H01S 309, H01S 314
Patent
active
045118507
ABSTRACT:
Method and apparatus for amplification of a laser pulse in a free electron laser amplifier where the laser pulse duration may be a small fraction of the electron beam pulse duration used for amplification. An electron beam pulse is passed through a first wiggler magnet and a short laser pulse to be amplified is passed through the same wiggler so that only the energy of the last fraction, f, (f<1) of the electron beam pulse is consumed in amplifying the laser pulse. After suitable delay of the electron beam, the process is repeated in a second wiggler magnet, a third, . . . , where substantially the same fraction f of the remainder of the electron beam pulse is consumed in amplification of the given short laser pulse in each wiggler magnet region until the useful electron beam energy is substantially completely consumed by amplification of the laser pulse.
REFERENCES:
patent: 4162432 (1979-07-01), Schlitt
patent: 4225649 (1984-01-01), Elias et al.
patent: 4287488 (1981-09-01), Brau et al.
patent: 4323857 (1982-04-01), Brau et al.
patent: 4337413 (1982-06-01), Pontvranne
Boehmer et al., "An Experiment on FEL . . . Wiggler", 6/81, pp. 3156-3159, IEEE Trans. an Nuc. Sci., vol. NS-28, #3.
Prosnitz et al., "Preliminary Examination . . . FEL", 2/5/79, pp. 1-24, DE 82012042, Abst. Cited only.
Prosnitz et al., "One-Dimensional Computer . . . Radiation", 8/13/79, pp. 571-587, ISBN-0-201-05687-9, Abstract Cited only.
Schlitt Leland G.
Szoke Abraham
Hightower Judson R.
Lykes, Jr. Charles E.
Moskowitz Nelson
Schipper John F.
The United States of America as represented by the United States
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