Three-wavelength alkali metal vapor laser based on discrete gear-shaped vapor pool structure

The utility model discloses a three-wavelength alkali metal vapor laser based on a discrete gear-shaped vapor pool structure. The three-wavelength alkali metal vapor laser comprises three independentgear-shaped closed alkali metal vapor pools, three sets of temperature control systems, three pumping sources, three time domain modulators, three sets of pumping coupling systems and an optical resonant cavity, one of a potassium medium, a rubidium medium and a cesium medium and a buffer gas are respectively filled in each gear-shaped closed alkali metal steam pool; each temperature control system is arranged outside one gear-shaped alkali metal steam pool and is used for controlling the working temperature of the alkali metal steam pool; the central wavelength of the output laser of each pumping source corresponds to the central absorption wavelength of one alkali metal medium; each time domain modulator can be used for carrying out time domain modulation with a certain frequency on onepath of continuous pump li