Optical propagation modeling for the National Ignition Facility

Wade H. Williams; Jerome M. Auerbach; Mark A. Henesian; Kenneth S. Jancaitis; Kenneth R. Manes; Naresh C. Mehta; Charles D. Orth; Richard A. Sacks; Michael J. Shaw; Clifford Clay Widmayer

doi:10.1117/12.538476

28 May 2004 Optical propagation modeling for the National Ignition Facility

Wade H. Williams, Jerome M. Auerbach, Mark A. Henesian, Kenneth S. Jancaitis, Kenneth R. Manes, Naresh C. Mehta, Charles D. Orth, Richard A. Sacks, Michael J. Shaw, Clifford Clay Widmayer

Author Affiliations +

Proceedings Volume 5341, Optical Engineering at the Lawrence Livermore National Laboratory II: The National Ignition Facility; (2004) https://doi.org/10.1117/12.538476
Event: Lasers and Applications in Science and Engineering, 2004, San Jose, Ca, United States

Abstract

Optical propagation modeling of the National Ignition Facility has been utilized extensively from conceptual design several years ago through to early operations today. In practice we routinely (for every shot) model beam propagation starting from the waveform generator through to the target. This includes the regenerative amplifier, the 4-pass rod amplifier, and the large slab amplifiers. Such models have been improved over time to include details such as distances between components, gain profiles in the laser slabs and rods, transient optical distortions due to the flashlamp heating of laser slabs, measured transmitted and reflected wavefronts for all large optics, the adaptive optic feedback loop, and the frequency converter. These calculations allow nearfield and farfield predictions in good agreement with measurements.

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Wade H. Williams, Jerome M. Auerbach, Mark A. Henesian, Kenneth S. Jancaitis, Kenneth R. Manes, Naresh C. Mehta, Charles D. Orth, Richard A. Sacks, Michael J. Shaw, and Clifford Clay Widmayer "Optical propagation modeling for the National Ignition Facility", Proc. SPIE 5341, Optical Engineering at the Lawrence Livermore National Laboratory II: The National Ignition Facility, (28 May 2004); https://doi.org/10.1117/12.538476

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