8 December 1995 Improvement of laser irradiation uniformity in GEKKO XII glass laser system
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Proceedings Volume 2633, Solid State Lasers for Application to Inertial Confinement Fusion (ICF); (1995); doi: 10.1117/12.228321
Event: Solid State Lasers for Application to Inertial Confinement Fusion (ICF), 1995, Monterey, CA, United States
Abstract
Several key technologies for uniform laser irradiation are reported. This paper includes the uniformity performance as a result of the introduction of the random phase plate, the partially coherent light, and the beam smoothing by spectral dispersion into the New Gekko XII glass laser system. Finally we summarize the overall irradiation uniformity on the spherical target surface by considering the power imbalance effect. The technologies developed for the beam smoothing and the power balance control enable us to achieve the irradiation nonuniformities of around 1% level for a foot pulse and of a few percent for a main drive pulse, respectively.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Noriaki Miyanaga, Shinjiro Matsuoka, Akinobu Ando, Kouji Tsubakimoto, Shinji Amano, Masahiro Nakatsuka, Tadashi Kanabe, Takahisa Jitsuno, Sadao Nakai, "Improvement of laser irradiation uniformity in GEKKO XII glass laser system", Proc. SPIE 2633, Solid State Lasers for Application to Inertial Confinement Fusion (ICF), (8 December 1995); doi: 10.1117/12.228321; https://doi.org/10.1117/12.228321
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KEYWORDS
Spherical lenses

Laser irradiation

Glasses

Laser glasses

Absorption

Laser systems engineering

Phase modulation

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