CARBON DIOXIDE GAS LASER TUBE AND PREPARATION METHOD THEREFOR

摘要

A carbon dioxide gas laser tube and a preparation method therefor. The carbon dioxide gas laser tube comprises laser lenses (1, 11) and a glass tube (20), characterised in that the laser lenses (1, 11) are fixedly sealed and connected to ports of the glass tube via metal rings matching the port expansion coefficient of the glass tube (20), the metal rings being arranged between the laser lenses and the ports of the glass tube. A metal ring comprises a Kovar portion (14), a lens seat portion (12) and a thin sheet portion (32), said portions being fixedly sealed and connected. The Kovar portions (14) are sealed and sintered to the ports of the glass tube (20), the laser lenses (1, 11) are adhered to the thin sheet portions (32), and the thin sheet portions (32) are annular metal thin sheet structures.