Various buffer gas effects on amplifying parameters of a copper bromide laser

Abstract

A pair of Copper Bromide lasers in an oscillator–amplifier configuration was used to study the dependence of the small-signal gain (g0), saturation energy intensity (Es) and output power on various types of Buffer gases in CuBr vapor lasers. The amplifying parameters and output power of the system were measured at different buffer gas pressure and the optimum pressure of 11, 17 and 23 torr were obtained for He, He–Ne and Ne, respectively. The values of these parameters were different for various gases used in the gain medium. It was shown that the use of He has more efficient and output power than that of Ne or their mixed ones in CuBr lasers. The type of buffer gas used in the gain medium can affect the microscopic parameters, which in turn affects the operation and output power.