Oscillation of metal-vapor lasers with the transverse-type of electrical discharge and with a high repetition rate of pumping pulses
Abstract
Oscillation of metal-vapor lasers with the transverse-type of electrical discharge and with a high repetition rate of pumping pulses
Incoming article date: 16.08.2016The lasers working at mixture of helium and mercury vapors, and at mixture of neon and thallium vapors, in which the population inversion and laser oscillation are carried out on mercury ionic quantum transitions with the wavelengths of 615 nm and 794,5 nm, and on thallium ionic transitions with a wavelength of 594,9 nm and 695 nm are investigated.The conclusion is drawn about a similarity of pumping of ion quantum transitions of metals in the active media of ion gas discharge metal vapor lasers in plasma of transverse-type discharges: the hollow cathode discharge and a capacitive high-frequency discharge. The optimum discharge conditions from the point of view of obtaining the maximum laser output power have been experimentally found when using for pumping as transverse-type discharge with hollow cathode with high repetition rate of current pulses up to 100 kHz. The structure of 594,9 and 695nm thallium ionic laser lines caused by hyperfine and isotopic splitting of laser levels is investigated. The frequency intervals between components of 594,9nm laser line (45 GHz and 102 GHz) and of 695 nm line (35GHz) are measured
Keywords: ion metal vapor laser, high-frequency discharge, hollow-cathode discharge with high repetition rate of current pulses, optimum conditions for laser oscillation