Abstract: |
The invention belongs to the field of laser technique that characterized in that it has two pumping source, two gain medium and two-tone lens used by two pumping sources, and several pumping laser systems can compose the multilevel laser system, thereinto, the second gain mediun of former level gain module can compose with the first gain mediun of next level gain module to form one the pumping laser system and the reflector and outgoing mirror can form a resonant cavity. It has advantages of firm structure, high output power and high quality of light beam. |