Solid state laser driver for an ICF reactor
A conceptual design is presented of the main power amplifier of a multi-beamline, multi-megawatt solid state ICF reactor driver. Simultaneous achievement of useful beam quality and high average power is achieved by a proper choice of amplifier geometry. An amplifier beamline consists of a sequence of face-pumped rectangular slab gain elements, oriented at the Brewster angle relative to the beamline axis, and cooled on their large faces by helium gas that is flowing subsonically. The infrared amplifier output radiation is shifted to an appropriately short wavelength (<500 nm) using nonlinear crystals that are also gas cooled. The authors project an overall driver efficiency >10% (including all flow cooling input power) when the amplifiers are pumped by efficient high-power AlGaAs semiconductor laser diode arrays.
- Research Organization:
- Lawrence Livermore National Lab., Livermore, CA (US)
- OSTI ID:
- 6026949
- Report Number(s):
- CONF-881031-; TRN: 89-013902
- Journal Information:
- Fusion Technol.; (United States), Vol. 15:2; Conference: 8. topical meeting on technology of fusion energy, Salt Lake City, UT, USA, 9 Oct 1988
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AMPLIFIERS
GEOMETRY
GAS COOLED REACTORS
LASER-PRODUCED PLASMA
INERTIAL CONFINEMENT
SOLID STATE LASERS
ALUMINIUM ARSENIDES
GAIN
GALLIUM ARSENIDES
HELIUM
INFRARED RADIATION
SEMICONDUCTOR LASERS
SLABS
ALUMINIUM COMPOUNDS
AMPLIFICATION
ARSENIC COMPOUNDS
ARSENIDES
CONFINEMENT
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
FLUIDS
GALLIUM COMPOUNDS
GASES
LASERS
MATHEMATICS
NONMETALS
PLASMA
PLASMA CONFINEMENT
PNICTIDES
RADIATIONS
RARE GASES
REACTORS
SEMICONDUCTOR DEVICES
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