Abstract
Amplitude-modulation techniques are used to investigate the response of a multimode dye laser when its pump intensity is sinusoidally amplitude-modulated. A theoretical model is presented based on a Floquet analysis to obtain the stationary-state first-harmonic response of the population inversion and that of the laser intensity as a function of modulation frequency. Experiments were performed in multimode continuous-wave dye lasers to demonstrate the validity of this theory in describing the behavior of multimode lasers operating near the lasing threshold.
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