A fast pulsed jet of is applied for the loss modulation of a CW laser and pulse trains of repetitively Q -switched generation are recorded in the frequency range 0.1-1 kHz. The laser-pulse shape and its duration depend on the jet-driving frequency, the position of the pulsed stream relative to the intracavity beam and the temporal changes of the absorber density. A controllable, full-depth modulation of the laser output at frequencies in the range between the jet frequency and harmonics is obtained. The process is ascribed to the interaction of a vortex trail evolving in the jet-edge region. The resulting modulation of the laser gain is ascribed to the common effect of the absorber bleaching and beam refraction.
No takes yet. Share an insight, caveat, or question.
Śliwiński et al. (1999) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: