Injection locking of high-power pulsed lasers. I. Monochromatic injection

The theory of injection locking is based on the realistic situation where the injected intensity is much larger than the spontaneous noise intensity and smaller than the saturation intensity. Wideband homogeneously broadened lasers with injection are analyzed in the small-signal regime, including diffraction effects. The relevant equation for the injection-driven field is an iterative equation solved in the time domain. Multimode behaviors can be predicted. Injection locking is the result of a competition between the injection- and noise-driven fields. The laser behaviour is fully characterized by locking curves in the 2-D space of the injection parameters and by locked mode distributions