Suppression of feedback oscillations in free-electron lasers

Journal Article · Thu Sep 01 04:00:00 EDT 1988 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/3.7116· OSTI ID:6587308

Fajans, J ^[1]; Wurtole, J S ^[2]

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1. Dept. of Physics, Univ. of California, San Diego, La Jolla, CA 92093 (US)
2. Massachusetts Institute of Technology, Cambridge, MA 02139 (US)

The suppression of feedback oscillations in a free-electron laser (FEL) oscillator has been investigated. It is found, through numerical simulation, that a narrow attenuating strip inserted in a waveguide will not reduce FEL performance at the desired frequency and will attenuate feedback oscillations. Simulations are presented for a 5 mm wavelength FEL with a 40dB attenuator inserted in the interaction region.

• OSTI ID: 6587308
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. 24:9; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ATTENUATION
DAMPING
ELECTRONIC EQUIPMENT
EQUIPMENT
FEEDBACK
FREE ELECTRON LASERS
LASERS
MATHEMATICAL MODELS
OSCILLATIONS
OSCILLATORS
WAVEGUIDES