chirped-pulsed–amplification (CPA)
technique developed at LLE in the late 1980s by Gerard Mourou and Donna Strickland.
With the CPA method, the laser pulse is first stretched thousands of times, amplified, and recompressed into a very short and very intense pulse.
The OMEGA EP laser intensity on target is expected to eventually reach 10^21 watts per centimeter squared, inducing an electric field so large that the electrons of the target material will be accelerated to a velocity close to the speed of light.