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Proceedings Paper

Petawatt laser system
Author(s): Deanna Marie Pennington; Michael D. Perry; Brent C. Stuart; Robert D. Boyd; Jerald A. Britten; Curtis G. Brown; Steve M. Herman; John L. Miller; Hoang T. Nguyen; Bruce W. Shore; Gregory L. Tietbohl; Victor P. Yanovsky
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Paper Abstract

We recently demonstrated the production of over a petawatt of peak power in the Nova/Petawatt Laser Facility, generating > 600 J in approximately 440 fs. The Petawatt Laser Project was initiated to develop the capability to test the fast ignitor concept for inertial confinement fusion, and to provide a unique capability in high energy density physics. The laser was designed to produce near kJ pulses with a pulse duration adjustable between 0.5 and 20 ps. At the shortest pulse lengths, this laser is expected to surpass 1021 W/cm2 when focused later this year. Currently, this system is limited to 600 J pulses in a 46.3- cm beam. Expansion of the beam to 58 cm, with the installation of 94-cm gratings, will enable 1 kJ operation. Target experiments with petawatt pulses will be possible either integrated with Nova in the 10 beam target chamber or as a stand alone system in an independent, dedicated chamber. Focusing the beam onto a target will be accomplished using an on axis parabolic mirror. The design of a novel targeting system enabling the production of ultrahigh contrast pulses and an easily variable effective focal length is also described.

Paper Details

Date Published: 8 December 1997
PDF: 11 pages
Proc. SPIE 3047, Solid State Lasers for Application to Inertial Confinement Fusion: Second Annual International Conference, (8 December 1997); doi: 10.1117/12.294337
Show Author Affiliations
Deanna Marie Pennington, Lawrence Livermore National Lab. (United States)
Michael D. Perry, Lawrence Livermore National Lab. (United States)
Brent C. Stuart, Lawrence Livermore National Lab. (United States)
Robert D. Boyd, Lawrence Livermore National Lab. (United States)
Jerald A. Britten, Lawrence Livermore National Lab. (United States)
Curtis G. Brown, Lawrence Livermore National Lab. (United States)
Steve M. Herman, Lawrence Livermore National Lab. (United States)
John L. Miller, Lawrence Livermore National Lab. (United States)
Hoang T. Nguyen, Lawrence Livermore National Lab. (United States)
Bruce W. Shore, Lawrence Livermore National Lab. (United States)
Gregory L. Tietbohl, Lawrence Livermore National Lab. (United States)
Victor P. Yanovsky, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 3047:
Solid State Lasers for Application to Inertial Confinement Fusion: Second Annual International Conference
Michel L. Andre, Editor(s)

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