Chirped pulse amplification
A technique for amplifying an ultrashort laser pulse up to the petawatt levels / From Wikipedia, the free encyclopedia
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Chirped pulse amplification (CPA) is a technique for amplifying an ultrashort laser pulse up to the petawatt level, with the laser pulse being stretched out temporally and spectrally, then amplified, and then compressed again.[1] The stretching and compression uses devices that ensure that the different color components of the pulse travel different distances.
CPA for lasers was introduced by Donna Strickland and Gérard Mourou at the University of Rochester in the mid-1980s,[2] work for which they received the Nobel Prize in Physics in 2018.[3]
CPA is the current state-of-the-art technique used by most of the highest-power lasers in the world.