Design and performance of high-gain free-electron lasers with grazing incidence, unstable ring resonators

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

DOI:https://doi.org/10.1109/3.196· OSTI ID:6949368

Bhowmik, A; Cover, R A; Kennedy, P K; Bitterly, S E; Labbe, R H

Grazing incidence, ring resonators have been proposed for high-gain free-electron lasers to alleviate the problem of inordinately high irradiance on intracavity optics. Such resonators are also relatively compact, and consequently, their alignment tolerances are more manageable. In this paper, the authors present a geometric design algorithm and detailed computer analysis of a high-gain free-electron ring laser with hyperboloid-paraboloid grazing incidence telescopes. A 3-D wave optics computer code is used to determine the loaded cavity transverse mode characteristics of the high-gain unstable ring laser and to examine the issue of transverse mode control as a function of key resonator parameters. Perturbation sensitivity of the individual elements is also determined and compared to that of an equivalent long stable resonator.

• Research Organization: Rocketdyne Div., Rockwell International, Canoga Park, CA (US)
• OSTI ID: 6949368
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. 24:5; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALGORITHMS
AMPLIFICATION
CAVITY RESONATORS
COMPUTER CALCULATIONS
COMPUTER CODES
DESIGN
ELECTRONIC EQUIPMENT
EQUIPMENT
FREE ELECTRON LASERS
GAIN
GEOMETRY
GRAZING
LASERS
MATHEMATICAL LOGIC
MATHEMATICS
MODE SELECTION
PERFORMANCE TESTING
PERTURBATION THEORY
RESONATORS
TESTING