Synchronous pumping of jet organic dye lasers with sinusoidally modulated argon laser radiation

A simple and convenient method of synchronous pumping of jet organic dye lasers is described. In this method a cw argon laser with sinusoidally modulated radiation is used as the pump source. The argon laser is modulated by a standing-wave acoustooptic modulator operating at the frequency of intermode beats of the dye laser. The results are given of an experimental investigation of the width of the mode locking range under synchronous pumping conditions and of the time and energy characteristics of the output radiation. The duration of the output pulses of the dye laser was ~ 350 ps under synchronous pumping conditions.