Free Electron Laser (Oscillator) - Linear Gain And Stable Pulse Propagation

M. N. Rosenbluth; H.Vernon Wong; B. N. Moore

doi:10.1117/12.947074

16 February 1984 Free Electron Laser (Oscillator) - Linear Gain And Stable Pulse Propagation

M. N. Rosenbluth, H.Vernon Wong, B. N. Moore

Proceedings Volume 0453, Free-Electron Generators of Coherent Radiation; (1984) https://doi.org/10.1117/12.947074
Event: Free-Electron Generators of Coherent Radiation, 1983, Orcas Island, United States

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.

Citation Download Citation

M. N. Rosenbluth, H.Vernon Wong, and B. N. Moore "Free Electron Laser (Oscillator) - Linear Gain And Stable Pulse Propagation", Proc. SPIE 0453, Free-Electron Generators of Coherent Radiation, (16 February 1984); https://doi.org/10.1117/12.947074

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