Abstract
A new method to generate high power, short light pulses with a moderate iteration frequency is described. The pulse train of the actively mode-locked Kr laser was sent into a dye-laser amplifier pumped by a N 2 laser. The trigger of the N 2 laser was generated by dividing the modulation frequency of the mode-locking into moderately low frequency (≈ 50 Hz). Only one pulse in the input train was largely amplified by one N 2 laser pulse and the intense short pulses were generated with ≈ 50 Hz iteration.
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