Formation of the specified laser output by means of intracavity active mirrors

摘要

Formation of the given intensity distributions of fundamental mode by means of intracavity controlled mirror is discussed. Such mirror is a water-cooled bimorph flexible one having four controlling electrodes. Analysis has confirmed the possibility to form doughnut-like and super- gaussian intensity distributions at the output of the stable resonators of industrial CW CO$-2$/ lasers. Results of experimental formation of the super-gaussian fundamental modes of the 4th and 6th orders by means of the intracavity flexible mirror are presented. The increase of power up to 12% and the enlarging of the peak value of the far-field intensity in 1.6 times in the comparison with the traditional gaussian TEM$-00$/ mode of the same resonator are observed.