Demonstration of a free electron laser with an electromagnetic wiggler

V. L. Granatstein, Y. Carmel, A. Gover

Research output: Contribution to journalArticlepeer-review


It has been suggested that for a given output wavelength, electron energy requirements could be greatly reduced in a two stage FEL. The principal of a two-stage device has been demonstrated in an experiment where the same intense relativistic election beam first produces 500 MW of 12.5 GHz radiation through a backward-wave-oscillatior (BWO) process, and then uses the BWO radiation as a wiggler for an FEL operating at ~200 GHz. Improvements in the initial experimental configuration which will optimize the 200 GHz emission are described.

Original languageEnglish
Pages (from-to)344-349
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 16 Feb 1984
Externally publishedYes


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