Abstract
The saturation process of free-electron-laser oscillators (FEL’s) in the warm-beam regime is examined, considering radiation-extraction efficiency and spectral width. The spectral width and conversion efficiency can be estimated in both high- and low-gain regimes when the laser-oscillator mode population is sparse enough. Under certain conditions, which can be achieved in a relativistic FEL with a Fabry–Perot resonator, a superinhomogeneous-broadening saturation process is predicted in which a hill-heaping effect will accompany the hole burning in the gain curve. In an oscillator, the resonator modes will interact and tend to spread both the emission spectrum and the electron-beam distribution uniformly and over a wide region.
© 1980 Optical Society of America
Full Article | PDF ArticleMore Like This
Chun-Ching Shih and Amnon Yariv
Opt. Lett. 5(2) 76-78 (1980)
V. V. Apollonov, A. I. Artemyev, M. V. Fedorov, E. A. Shapiro, and J. K. McIver
Opt. Express 3(5) 162-170 (1998)
P. M. Livingston and D. L. Bullock
Opt. Lett. 5(7) 291-293 (1980)