Transverse mode effects in free-electron laser oscillations

Robert K. Wong; William B. Colson

doi:10.1117/12.176664

25 May 1994 Transverse mode effects in free-electron laser oscillations

Robert K. Wong, William B. Colson

Proceedings Volume 2118, Gas, Metal Vapor, and Free-Electron Lasers and Applications; (1994) https://doi.org/10.1117/12.176664
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

Simulations in two transverse spatial dimensions and time are used to study the evolution of the optical mode in a free electron laser. It is assumed that the electron beam is narrow, the current is low, and the optical fields are weak. Over a single pass, optical mode distortion results in increased gain as the electron beam radius decreases while total current is held constant. Over many passes with transmission and diffraction losses included, the optical mode is still distorted, but the trend of increasing gain is no longer observed.

Citation Download Citation

Robert K. Wong and William B. Colson "Transverse mode effects in free-electron laser oscillations", Proc. SPIE 2118, Gas, Metal Vapor, and Free-Electron Lasers and Applications, (25 May 1994); https://doi.org/10.1117/12.176664

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