Centroid stabilization for laser alignment to corner cubes [electronic resource] : designing a matched filter

Published:: Washington, D.C. : United States. Dept. of Energy, 2016.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description:: Article numbers A41 : digital, PDF file
Additional Creators:: Lawrence Berkeley National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

Automation of image-based alignment of National Ignition Facility high energy laser beams is providing the capability of executing multiple target shots per day. One important alignment is beam centration through the second and third harmonic generating crystals in the final optics assembly (FOA), which employs two retroreflecting corner cubes as centering references for each beam. Beam-to-beam variations and systematic beam changes over time in the FOA corner cube images can lead to a reduction in accuracy as well as increased convergence durations for the template-based position detector. A systematic approach is described that maintains FOA corner cube templates and guarantees stable position estimation.

Report Numbers:

E 1.99:llnl-jrnl-699141
llnl-jrnl-699141

Subject(s):

Engineering

Note:

Published through SciTech Connect.
11/08/2016.
"llnl-jrnl-699141"
Applied Optics 56 1 ISSN 0003-6935; APOPAI FT
Awwal, Abdul; Bliss, Erlan; Brunton, Gordon; Kamm, Victoria; Leach, Richard; Lowe-Webb, Roger; Roberts, Randy; Wilhelmsen, Karl.

Funding Information:

AC52-07NA27344

View MARC record | catkey: 23766451