Temperature scaling of a Sr+ recombination laser

Water-cooled, stable operating at average powers of 0.6-1.1 W; Sr+ recombination laser with independent production of Sr vapor is reported. Some features of the discharge tube construction and the laser operation are given. It is found that the application of the water cooling enables a higher input power loading for optimum tube- wall temperature. At Sr+ laser with independent production of the metal vapor it is possible to control the concentration of the Sr vapor and to inhibit the effect of overheating on lasing. This peculiarities result in an increase in the average laser power and an improvement of the laser operation stability.