Adaptive optics system for solid state laser systems used in inertial confinement fusion

J. Thaddeus Salmon; Erlan S. Bliss; Jerry L. Byrd; Mark Feldman; Michael W. Kartz; John S. Toeppen; Bruno M. Van Wonterghem; Scott Winters

doi:10.1117/12.228319

8 December 1995 Adaptive optics system for solid state laser systems used in inertial confinement fusion

J. Thaddeus Salmon, Erlan S. Bliss, Jerry L. Byrd, Mark Feldman, Michael W. Kartz, John S. Toeppen, Bruno M. Van Wonterghem, Scott Winters

Author Affiliations +

Proceedings Volume 2633, Solid State Lasers for Application to Inertial Confinement Fusion (ICF); (1995) https://doi.org/10.1117/12.228319
Event: Solid State Lasers for Application to Inertial Confinement Fusion (ICF), 1995, Monterey, CA, United States

Abstract

Using adaptive optics we have obtained nearly diffraction-limited 5 kJ, 3 nsec output pulses at 1.053 micrometer from the Beamlet demonstration system for the National Ignition Facility (NIF). The peak Strehl ratio was improved from 0.009 to 0.50, as estimated from measured wavefront errors. We have also measured the relaxation of the thermally induced aberrations in the main beam line over a period of 4.5 hours. Peak-to-valley aberrations range from 6.8 waves at 1.053 micrometer within 30 minutes after a full system shot to 3.9 waves after 4.5 hours. The adaptive optics system must have enough range to correct accumulated thermal aberrations from several shots in addition to the immediate shot-induced error. Accumulated wavefront errors in the beam line will affect both the design of the adaptive optics system for NIF and the performance of that system.

Citation Download Citation

J. Thaddeus Salmon, Erlan S. Bliss, Jerry L. Byrd, Mark Feldman, Michael W. Kartz, John S. Toeppen, Bruno M. Van Wonterghem, and Scott Winters "Adaptive optics system for solid state laser systems used in inertial confinement fusion", Proc. SPIE 2633, Solid State Lasers for Application to Inertial Confinement Fusion (ICF), (8 December 1995); https://doi.org/10.1117/12.228319

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