Ultra-intense laser systems are being developed by a number of institutions to use the full potential of deuterated potassium dihydrogen phosphate (DKDP) for high-energy optical parametric chirped-pulse amplification (OPCPA)[1–5]. Noncollinear optical parametric amplifiers (NOPAs) based on large DKDP crystals produce broadband gain for supporting pulses as short as 10 fs. Although OPCPA is now routinely used as a broadband front-end technology, scaling OPCPA to more than 100 J is still an active area of research.
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