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Proceedings Paper

Free Electron Laser (Oscillator) - Linear Gain And Stable Pulse Propagation
Author(s): M. N. Rosenbluth; H.Vernon Wong; B. N. Moore
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Paper Abstract

The operation of a Free Electron Laser (FEL) in an oscillator mode using a variable parameter wiggler has been investigated by a combination of theoretical analysis and numerical simulation. The linear eigenmode analysis leading to a calculation of the linear gain per pass has been carried out for both ultra-short and finite length micropulses. The effects of sideband growth and suppression are studied using a simulation code. Stable large amplitude pulse propagation is achieved by passing the pulse through a band-pass filter to attenuate sideband modes above and below the main pulse frequency. A minimum current criterion is derived which must be satisfied to ensure both linear gain and stable pulse propagation.

Paper Details

Date Published: 16 February 1984
PDF: 16 pages
Proc. SPIE 0453, Free-Electron Generators of Coherent Radiation, (16 February 1984); doi: 10.1117/12.947074
Show Author Affiliations
M. N. Rosenbluth, Austin Research Associates (United States)
H.Vernon Wong, Austin Research Associates (United States)
B. N. Moore, Austin Research Associates (United States)


Published in SPIE Proceedings Vol. 0453:
Free-Electron Generators of Coherent Radiation
Charles A. Brau; Stephen F. Jacobs; Marlan O. Scully, Editor(s)

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