Injection-locking regime in a high-power XeCl laser

The results are presented of an experimental investigation of injection locking in an XeCl laser with output energies of 30–40 J in a 300-ns pulse, using a 100-ns external signal pulse with a 0.2 cm^–1 line width and an energy of 10 mJ. When the axial region of an unstable resonator was filled by the external signal from the start of pumping to the attainment of the lasing threshold, 90% of the lasing energy was concentrated in the injected line.