Optimisation of the pumping parameters of a repetitively pulsed erbium laser

The lasing parameters of active elements made of a new LGS-KhCh chromium – ytterbium – erbium glass are studied in the free-running mode. The methods for optimising the pump parameters and the laser design are demonstrated. An average output power of 8 W was achieved in a repetitively pulsed regime at the radiation divergence of 12 mrad at the 0.9 level.