A mid-scale plasma-electrode Pockels cell for the FLUX laser

B. E. Kruschwitz; S. Agnello; K. Gibney; D. Nelson; T. W. Walker; W. A. Bittle; N. Carrier; J. Hettrick; G. Mitchell; J. Szczepanski; G. L. Wagner

doi:10.1117/12.2646666

14 March 2023 A mid-scale plasma-electrode Pockels cell for the FLUX laser

B. E. Kruschwitz, S. Agnello, K. Gibney, D. Nelson, T. W. Walker, W. A. Bittle, N. Carrier, J. Hettrick, G. Mitchell, J. Szczepanski, G. L. Wagner

Author Affiliations +

Proceedings Volume 12401, High Power Lasers for Fusion Research VII; 1240104 (2023) https://doi.org/10.1117/12.2646666
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

A mid-scale (270 × 270-mm aperture) plasma-electrode Pockels cell (PEPC) has been developed for the pump laser system in FLUX (the fourth-generation laser for ultrabroadband experiments). The FLUX mid-scale PEPC is adapted from the PEPC used in the OMEGA EP beamlines (410 × 410-mm aperture), with certain dimensions scaled to reduce capacitance while maintaining key plasma characteristics. After experimental optimization of operating parameters, particularly the plasma current, <70-ns switching time with excellent (>1000:1) contrast has been demonstrated. Dependence of optical switching performance on operating conditions is explained by a plasma model.

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B. E. Kruschwitz, S. Agnello, K. Gibney, D. Nelson, T. W. Walker, W. A. Bittle, N. Carrier, J. Hettrick, G. Mitchell, J. Szczepanski, and G. L. Wagner "A mid-scale plasma-electrode Pockels cell for the FLUX laser", Proc. SPIE 12401, High Power Lasers for Fusion Research VII, 1240104 (14 March 2023); https://doi.org/10.1117/12.2646666

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