High-power, subpicosecond 10-μm pulse generation

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Abstract
Two-picosecond, 10-μm pulses, generated by optical semiconductor switching, have been regeneratively amplified in a multiatmosphere TE CO2 gain module. Pulses have been produced with a peak circulating energy of ~15 mJ and a power density in the gain medium in excess of 1012 W/cm2. A plasma-breakdown wave, traveling with the regeneratively amplified pulse, combined with anomalous dispersion in the NaCl windows, has permitted compression of these pulses to less than 1 psec in duration.

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