Laser Technology Development for High Peak Power Lasers Achieving Kilowatt Average Power and Beyond

E. Sistrunk; D. A. Alessi; A. Bayramian; K. Chesnut; A. Erlandson; T. C. Galvin; D. Gibson; H. Nguyen; B. Reagan; K. Schaffers; C. W. Siders; T. Spinka; C. Haefner

doi:10.1117/12.2525380

26 April 2019 Laser Technology Development for High Peak Power Lasers Achieving Kilowatt Average Power and Beyond

E. Sistrunk, D. A. Alessi, A. Bayramian, K. Chesnut, A. Erlandson, T. C. Galvin, D. Gibson, H. Nguyen, B. Reagan, K. Schaffers, C. W. Siders, T. Spinka, C. Haefner

Author Affiliations +

Proceedings Volume 11034, Short-pulse High-energy Lasers and Ultrafast Optical Technologies; 1103407 (2019) https://doi.org/10.1117/12.2525380
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

Abstract

Novel architectures of Petawatt-class, high peak power laser systems that allow operating at high repetition rates are opening a new arena of commercial applications of secondary sources and discovery science. The natural path to higher average power is the reduction of the total heat load induced and generated in the laser gain medium and eliminating other inefficiencies with the goal to turn more energy into laser photons while maintaining good beam quality. However, the laser architecture must be tailored to the specific application and laser parameters such as wavelength, peak power and intensity, pulse length, and shot rate must be optimized. We have developed a number of different concepts tailored to secondary source generation that minimize inefficiencies and maximize the average power. The Scalable Highaverage- power Advanced Radiographic Capability (SHARC) and the Big Aperture Thulium (BAT) laser are examples of two such high average power laser concepts; SHARC is designed for production of ion beams and x-rays, and exploration of high energy density physics at 1.5 kW average power, and BAT is envisioned for driving laser-based electron accelerators at 300 kW average power.

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E. Sistrunk, D. A. Alessi, A. Bayramian, K. Chesnut, A. Erlandson, T. C. Galvin, D. Gibson, H. Nguyen, B. Reagan, K. Schaffers, C. W. Siders, T. Spinka, and C. Haefner "Laser Technology Development for High Peak Power Lasers Achieving Kilowatt Average Power and Beyond", Proc. SPIE 11034, Short-pulse High-energy Lasers and Ultrafast Optical Technologies, 1103407 (26 April 2019); https://doi.org/10.1117/12.2525380

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