Paper
8 December 1995 Use of an intermediate wavelength laser for alignment to inertial confinement fusion targets
Author Affiliations +
Proceedings Volume 2633, Solid State Lasers for Application to Inertial Confinement Fusion (ICF); (1995) https://doi.org/10.1117/12.228313
Event: Solid State Lasers for Application to Inertial Confinement Fusion (ICF), 1995, Monterey, CA, United States
Abstract
The conceptual design of the National Ignition Facility (NIF) 192 beam laser incorporates a low-power alignment beam injected in the pinhole plane of the final spatial filter with a wavelength intermediate between the 1053 nm laser output and the 351 nm frequency- converted beam that illuminates the target. Choosing the specific wavelength for which the spatial filter plane is reimaged in the same target chamber plane as the frequency-converted main laser pulse, achieves optimum accuracy without the need for additional means to insure precise overlap between the two beams. Insertion of the alignment beam after the last laser amplifier also allows alignment to the target while the amplifiers are still cooling from a previous shot.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. Edward English Jr., Lynn G. Seppala, Charles S. Vann, and Erlan S. Bliss "Use of an intermediate wavelength laser for alignment to inertial confinement fusion targets", Proc. SPIE 2633, Solid State Lasers for Application to Inertial Confinement Fusion (ICF), (8 December 1995); https://doi.org/10.1117/12.228313
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Cited by 1 scholarly publication.
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KEYWORDS
Spatial filters

National Ignition Facility

Optical alignment

Laser systems engineering

Reflectivity

Mirrors

Optical amplifiers

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