Amplifiers – Parametric amplifiers – Semiconductor type
Patent
1990-09-24
1991-06-11
Moskowitz, Nelson
Amplifiers
Parametric amplifiers
Semiconductor type
372 2, 315 36, 315 543, 331 941, H01S 309, H01S 314
Patent
active
050235630
ABSTRACT:
A method is disclosed of employing free electron lasing action at a first frequency to achieve gain in output power at a second frequency. In a broadest sense, an electron beam is driven with an electromagnetic wave at said first frequency in a first stage, having a first spatial period, to cause bunching of the electron beam. The electrons in the beam are oscillated with a second stage, having a second spatial period, to generate electromagnetic wave power from said beam at the second frequency.
In a specific embodiment, the second frequency is near a harmonic of said first frequency. And in a particular implementation, the first stage is provided by a free electron laser having a first wiggler with a first spatial period, the second stage is a second wiggler having a second spatial period and a drift region is disposed between the first and second stages.
REFERENCES:
patent: 4287488 (1981-09-01), Brou et al.
patent: 4331936 (1982-05-01), Schlinger et al.
patent: 4479219 (1984-10-01), Madey
patent: 4511850 (1985-04-01), Schlitt et al.
patent: 4697272 (1987-09-01), Harvey
patent: 4745617 (1988-05-01), Harvey
patent: 4809281 (1989-02-01), Neil et al.
Davidson et al., "Higher Harmonic . . . Wiggler"; Phys. Rev. A., vol. 26, #4, pp. 1997-2003, 10/82.
Smith et al., "UK Free-Electron Laser Proposal", 2 vol. Public of Addison-Wesley, 6/25/81, pp. 275-259.
M. C. Wang et al., "The Gain and Efficiency Improvement of a Free-Electron Laser by an Optical Klystron Configuration" IEEE Transactions on Plasma Science, vol. 16, No. 2, pp. 172-176, Apr. 1988.
A. K. Ganguly et al., "High Efficiency Operation of Free-Electron Laser Amplifier" IEEE Transactions on Plasma Science, vol. 16, No. 2, pp. 167-171, Apr. 1988.
C. Hih et al., "Two-Element Free-Electron Lasers", Optics Letters, vol. 5, No. 2, pp. 76-78, Feb. 1989.
P. Elleaume, "Optical Klystrons", Journal De Physique, Colloque Cl, No. 2, Tome 44, pp. C1-333--Cl-352, Feb. 1983.
R. Coisson, "Optical Klystrons", Particle Accelerators, vol. 11, pp. 245-253, 1981.
Harvey Robin J.
Palmer A. Jay
Denson-Low W. K.
Duraiswamy V. D.
Hughes Aircraft Company
Moskowitz Nelson
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