Abstract

The techniques of active square-wave mode locking and cavity dumping are used for the first reported time in a cavity containing a 10-atm TE discharge CO₂ laser amplifier module. The cavity is seeded with radiation from a line-tunable cw CO₂ laser. The synchronizable, injection-locked, Q-switched, mode-locked, and cavity-dumped laser oscillator reliably produces 5-mJ, <500-psec single pulses (detection limited) with a jitter of <±50 psec relative to firing the UV-triggered spark gap. These pulses are the shortest reported for actively mode-locked CO₂ lasers.

© 1987 Optical Society of America

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