Engineering the petawatt laser into Nova

Gregory L. Tietbohl; Perry M. Bell; Ronald M. Hamilton; Jeffrey B. Horner; Robert L. Horton; Arthur P. Ludwigsen; John L. Miller; William H. Olson; C. S. Patel; Deanna Marie Pennington; Michael D. Vergino; Timothy L. Weiland

doi:10.1117/12.311901

24 June 1998 Engineering the petawatt laser into Nova

Gregory L. Tietbohl, Perry M. Bell, Ronald M. Hamilton, Jeffrey B. Horner, Robert L. Horton, Arthur P. Ludwigsen, John L. Miller, William H. Olson, C. S. Patel, Deanna Marie Pennington, Michael D. Vergino, Timothy L. Weiland

Author Affiliations +

Proceedings Volume 3264, High-Power Lasers; (1998) https://doi.org/10.1117/12.311901
Event: Optoelectronics and High-Power Lasers and Applications, 1998, San Jose, CA, United States

Abstract

The engineering process of integrating the Petawatt (10¹⁵ watts) laser system into the existing 30 kJ (UV) Nova laser at Lawrence Livermore National Laboratory is described in detail. The nanosecond-long, chirped Petawatt laser pulse is initially generated in a separate master oscillator room and then injected into one of Nova's 10 beamlines. There, the pulse is further amplified and enlarged to ~ Φ60 cm, temporally compressed under vacuum to <500 fs using large diameter diffraction gratings, and then finally focused onto targets using a parabolic mirror. The major Petawatt components are physically large which created many significant engineering challenges in design, installation and implementation. These include the diffraction gratings and mirrors, vacuum compressor chamber, target chamber, and parabolic focusing mirror. Other Petawatt system components were also technically challenging and include: an injection beamline, transport spatial filters, laser diagnostics, alignment components, motor controls, interlocks, timing and synchronization systems, support structures, and vacuum systems. The entire Petawatt laser system was designed, fabricated, installed, and activated while the Nova laser continued its normal two-shift operation. This process required careful engineering and detailed planning to prevent experimental downtime and to complete the project on schedule.

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Gregory L. Tietbohl, Perry M. Bell, Ronald M. Hamilton, Jeffrey B. Horner, Robert L. Horton, Arthur P. Ludwigsen, John L. Miller, William H. Olson, C. S. Patel, Deanna Marie Pennington, Michael D. Vergino, and Timothy L. Weiland "Engineering the petawatt laser into Nova", Proc. SPIE 3264, High-Power Lasers, (24 June 1998); https://doi.org/10.1117/12.311901

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KEYWORDS

Mirrors

Diagnostics

Optical amplifiers

Control systems

Oscillators

X-rays

Diffraction gratings

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