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Proceedings Paper

Long-Base Free Electron Laser Resonant Cavity
Author(s): E. Miller; S. Bender; Q. Appert; A. Saxman; T. Swann
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Paper Abstract

A 65-meter resonant cavity has been constructed in order to experimentally determine the characteristics of long resonant cavities as would be required for a free electron laser1 (FEL). A version using normal incidence mirrors is reported here, and another that includes a grazing incidence mirror is forthcoming. Either version is designed to simulate a FEL operating at 0.5 micron wavelength and is near-concentric with a stability parameter of 0.98. Argon-ion plasma tubes simulate the laser gain that would be provided by a wiggler in an actual FEL. The cavity was constructed on a seismic slab and air turbulence effects were reduced by surrounding the beam with helium in 6" diameter tubes. AlignTept sensitivities are reported and compared to geometrical and diffraction predic-tions3' with good agreement.

Paper Details

Date Published: 20 November 1985
PDF: 5 pages
Proc. SPIE 0540, Southwest Conf on Optics '85, (20 November 1985); doi: 10.1117/12.976119
Show Author Affiliations
E. Miller, University of California (United States)
S. Bender, University of California (United States)
Q. Appert, University of California (United States)
A. Saxman, University of California (United States)
T. Swann, University of California (United States)


Published in SPIE Proceedings Vol. 0540:
Southwest Conf on Optics '85
Susanne C. Stotlar, Editor(s)

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