Microwave radiation from a high-gain free-electron laser amplifier
- 4 March 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 54 (9) , 889-892
- https://doi.org/10.1103/physrevlett.54.889
Abstract
A high-gain, high–extraction-efficiency, linearly polarized free-electron laser amplifier has been operated at 34.6 GHz. At low signal levels, exponential gain of 13.4 dB/m has been measured. With a 3-=kW input signal, saturation was observed with an 80-MW output and a 5% extraction efficiency. The results are in good agreement with linear models at small signal levels and nonlinear models at large signal levels.Keywords
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