Update of Laser Mégajoule large optics wavefront performance requirements

Mainguy, S.; Airiau, Jean-Philippe; Bart, Thierry; Beau, V.; Bordenave, E.; Bouillet, Stéphane; Chappuis, C.; Chico, Sandrine; Cormont, Philippe; Darbois, N.; Daurios, Jérôme; Denis, Vincent; Eupherte, Laure; Ferriou-Darbois, Nathalie; Fontaine, Servane; Gaborit, Gael; Grosset-Grange, C.; Journot, Eric; Lamaignère, Laurent; Lanternier, Thomas; Lavastre, Éric; Leymarie, Christophe; Lompré, L. A.; Mangeant, M.; Maunier, C.; Néauport, Jérôme; Perrot-Minnot, E.; Raze, Gerard; Reyné, Stéphane; Rouyer, C.; Sajer, J.M.; Seznec, S.; Taroux, Daniel; Vermersch, Sébastien; Déroff, L. Le

doi:10.1117/12.2004148

Cited by 3 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because of the extreme physical requirements of ICF systems, each LRU has strict specifications with respect to cleanliness, alignment and wavefront (Burkhart et al, 2011). These technical specifications pose a huge engineering challenge for the manufacturing, assembly and inspection of LRUs (Mainguy et al, 2013;Chabassier, 1999a, 1999b;Hurst et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

An intelligent computation system for precise assembly of large laser optics

Wang

Zhang

Xiong

et al. 2018

View full text Add to dashboard Cite

Purpose It is a huge technical and engineering challenge to realize the precise assembly of thousands of large optics in high power solid-state laser system. Using the 400-mm aperture-sized transport mirror as a case, this paper aims to present an intelligent numerical computation methodology for mounting performance analysis and modeling of large optics in a high-power laser system for inertial confinement fusion (ICF). Design/methodology/approach Fundamental principles of modeling and analysis of the transport mirror surface distortion are proposed, and a genetic algorithm-based computation framework is proposed to evaluate and optimize the assembly and mounting performance of large laser optics. Findings The stringent specifications of large ICF optics place very tight constraints upon the transport mirror’s assembly and mounts. The operational requirements on surface distortion [peak-to-valley and root mean square (RMS)] can be met as it is appropriately assembled by the close loop of assembly-inspection-optimization-fastening. In the end, the experimental study validates the reliability and effectiveness of the transport mirror mounting method. Originality/value In the assembly design and mounting performance evaluation of large laser optics, the whole study has the advantages of accurate evaluation and intelligent optimization on nano-level optical surface distortion, which provides a fundamental methodology for precise assembly and mounting of large ICF optics.

show abstract

Section: Introductionmentioning

confidence: 99%