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Proceedings Paper

Free Electron Lasers Using Stable-Unstable Ring Resonators
Author(s): Mark J. Schmitt; Alan H. Paxton
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Paper Abstract

The free electron laser (FEL) simulation code FELEX is used to examine the operation of stable-unstable FEL resonators. These resonators are stable along one transverse axis and unstable along the orthogonal transverse axis. The simulations utilize a ring resonator with an intracavity focus in the unstable plane near the center of the wiggler (close to the same axial position as the waist in the stable plane) thereby enhancing the coupling between the optical and electron beams. Asymmetric output scraping is performed in the back leg of the ring using a reflective mirror inserted from one side of the unstable axis. Resonators with relatively low equivalent Fresnel number (|Neq|≤10) and magnification (|Mx|≈1.2) are examined. Optical characteristics including the cavity mode profile at various positions inside the resonator are shown.

Paper Details

Date Published: 31 May 1989
PDF: 10 pages
Proc. SPIE 1045, Modeling and Simulation of Laser Systems, (31 May 1989); doi: 10.1117/12.951308
Show Author Affiliations
Mark J. Schmitt, Mission Research Corporation (United States)
Alan H. Paxton, Mission Research Corporation (United States)


Published in SPIE Proceedings Vol. 1045:
Modeling and Simulation of Laser Systems
Donald L. Bullock, Editor(s)

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