23 July 1999 Wavefront and divergence of the Beamlet prototype laser
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Proceedings Volume 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion; (1999) https://doi.org/10.1117/12.354256
Event: Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, 1998, Monterey, CA, United States
Abstract
We have measured the wavefront and the divergence of the Beamlet prototype laser under a variety of conditions. Emphasis of the tests was on quantifying best attainable divergence in the angular regime below 30 (mu) rad to benchmark propagation models that are used to set wavefront gradient specifications for NIF optical components. Performance with and without active wavefront correction was monitored with radial shearing interferometers that measured near-field wavefront at the input and output of the main amplifier with a spatial resolution of 1 cm, and cameras which measured the corresponding intensity distributions in the far field with an angular resolution of 0.3 (Mu) rad. Details of the measurements are discussed and related to NIF focal spot requirements and optics specifications.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Paul J. Wegner, Paul J. Wegner, Mark A. Henesian, Mark A. Henesian, J. Thaddeus Salmon, J. Thaddeus Salmon, Lynn G. Seppala, Lynn G. Seppala, Timothy L. Weiland, Timothy L. Weiland, Wade H. Williams, Wade H. Williams, Bruno M. Van Wonterghem, Bruno M. Van Wonterghem, } "Wavefront and divergence of the Beamlet prototype laser", Proc. SPIE 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, (23 July 1999); doi: 10.1117/12.354256; https://doi.org/10.1117/12.354256
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