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Optical system design of the National Ignition Facility

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Abstract

The National Ignition Facility (NIF) is a laser fusion facility being constructed at Lawrence Livermore National Laboratory (LLNL). The NIF will contain 192 independent laser beams. Each beam will have a square aperture of approximately 40 cm. The neodymium-doped phosphate glass laser system will produce over 3.5MJ of laser energy at a fundamental lasing wavelength of 1.053μm (1ω). The final optics assembly contains a pair of crystals (KDP/KD*P) and a focusing lens to convert the light by sum-frequency-mixing to 3ω (λ=0.35μm) and focus 1.8MJ onto the target.

© 1998 Optical Society of America

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