Single-mode operation of a Bragg free-electron maser oscillator
نویسندگان
چکیده
منابع مشابه
Single-mode operation of a Bragg free-electron maser oscillator.
Detailed studies of the spectral characteristics and spatial mode structure of a single-mode, high power Raman Free-Electron Maser (FEM) oscillator operating with a Bragg resonator are reported. The FEM oscillator generated approximately 1 MW of microwave power in a single axial mode at 27.47 GHz, with an electron beam energy of 320 keV and a transmitted current of 30 A, yielding an efficiency ...
متن کاملSingle-mode selection and axial mode control in a free-electron maser oscillator using a prebunched electron beam.
The effects of electron-beam prebunching on the radiation buildup process in a free-electron maser oscillator operating in the frequency range of 4–5 GHz were studied. An electron beam of 10 keV, 1 A was prebunched by means of a microwave tube section, accelerated to 70 keV, transported through a drift region by a solenoidal magnetic field and injected into a linearly polarized wiggler in which...
متن کاملEfficiency enhancement of free electron Maser oscillator by mode selection with a prebunched electron beam
We present a method for enhancing the efficiency of a Free Electron Laser Maser oscillator by locking it to a preferred resonator mode. This is done by prebunching of the e beam before injection into the wiggler. In a free running oscillator, the longitudinal mode that dominates the mode competition process during the oscillation buildup period is usually the highest gain mode. However, this mo...
متن کاملGinzburg-Landau Model and Single-Mode Operation of a Free-Electron Laser Oscillator
It is shown that the radiation field in a long-pulse, low-gain free-electron laser oscillator obeys the complex Ginzburg-Landau equation. The question of single-mode operation is investigated by analysis and simulation, and the results are compared with experiments at the University of California at Santa Barbara, as well as the Dutch fusion free-electron-maser experiment. It is shown that the ...
متن کاملGinzburg-Landau model for mode competition and single-mode operation of a free-electron laser
Mode competition of a free-electron laser is modeled by the Ginzburg-Landau equation. The stability of a single-mode solution is analyzed, and connections are established with known instabilities of the GinzburgLandau equation. It is found that the principal mode with the largest gain is always stable and hence there is no Benjamin-Feir instability. However, the Eckhaus ~or phase! instability g...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1994
ISSN: 0031-9007
DOI: 10.1103/physrevlett.72.2391