Amplifier-oscillator free electron laser
This patent describes a laser having as an excitation source a source of charged low-mass particles. It comprises: an optical amplifying means having an input disposed to receive the charged particles from the excitation source, the amplifying means comprising first means for producing a first spatially reciprocating magnetic field along a first optical section of an optical path of an optical beam and along a first particle section of a particle path of a particle beam where the first optical section and the first particle section overlap; and, an optical oscillator means disposed to receive the charged particles only through the amplifying means, the oscillator means comprising second means for producing a second spatially reciprocating magnetic field along a second optical section of the optical path and along a second particle section of the particle path where the second optical section and the second particle section overlap, the second spatially reciprocating magnetic field being of sufficient energy and the particle beam being of sufficient current density to produce gain above a threshold sufficient to induce lasing in the optical beam; and means for redirecting at least a portion of optical energy of the optical beam from the oscillator section to the input of the amplifying means.
- OSTI ID:
- 5475035
- Report Number(s):
- CONF-9010302--; US 4999839; A; PPN: US 7-375430
- Country of Publication:
- United States
- Language:
- English
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