Laser systems for high peak-power applications

Large scale programs are under way at major laboratories to study the feasibility of laser-induced fusion. The laser requirements for this investigation are formidable and it is estimated that powers in the range of 100 terrawatts with total energies of 100,000 to 1,000,000 joules may be needed. A major fraction of the effort was directed toward the development of high-energy short-pulse lasers which can meet these requirements. The parameters, of the CO2 laser system were extensively studied and it appears that the efficiency, energy density, bandwidth, and optical damage limits are compatible with the requirements. The scaling laws are also now well understood. Based upon these results, several large carbon dioxide systems were developed by the Los Alamos Scientific Laboratory.