Investigation of CO2 laser resonator with maximum output power

A new design method to optimize a laser resonator is presented.Applying a genetic algorithm and taking a laser output power as an objective function,we optimize a typical CO2 laser resonator with a length of 1.2m.The optimal laser output with a fundamental mode increases to 89W comparing with the non optimized laser output of 55W,and the measured output increases to 74W in an experiment.