We report on commercial picosecond thin-disk regenerative amplifiers providing pulse energies up to 200 mJ and 1 kW of average power. A monolithic mirror array was developed for further scaling in a multipass arrangement. First tests in continuous and nanosecond regimes yielded respectively 20 kW and 3 kW of output power. By merging both technologies and adding a nonlinear compression stage, sub-50-fs pulses are feasible at a multi-kW level.
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