Method and apparatus for operating a gas laser

US4550408A · kind A · utility

Inventors

• Heinrich Karning · Heidelberg, DE
• Franz Prein · Neckargemünd, DE
• Karl-Heinz Vierling · Neckargemünd, DE

Key dates

• Filing date: Feb 22, 1982
• Grant date: Oct 29, 1985
• Expiry date: Feb 22, 2002

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/036
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Methods and apparatuses for operating a gas laser which utilize the electrical discharge between the electrodes to increase gas circulation. In a first embodiment, electrical discharges cause a control current (pulse) which activates an electromechanical device disposed within a closed gas flow loop. The electromechanical device acts as a pump and effects gas exchange and heat dissipation with a minimum of elements. In other embodiments, electrical discharges cause pressure fluctuations which increase gas circulation without the use of mechanically moved parts. To this end, connecting lines that determine the direction of the flow are placed between the chambers in order to facilitate equalization of gas pressure. A flow circulation loop is thereby created in a quasi-passive manner when suitably constructed.