Flowing gas laser

US5303253A · kind A · utility

Assignee

• Gebr. Becker GmbH · DE

Inventors

• Hans-Heinrich Henning · Cologne, DE
• Bernd Ellinghaus · Wuppertal, DE
• Frank Diedrichsen · Wuppertal, DE
• Walter Winkelstroter · Wuppertal, DE
• Dieter Frohn · Wuppertal, DE

Key dates

• Filing date: Jun 5, 1992
• Grant date: Apr 12, 1994
• Expiry date: Jun 5, 2012

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/2232
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A compact flowing gas laser, particularly a CO.sub.2 gas laser, wherein the path or paths between the outlet or outlets and the inlet or inlets of one or more optical resonators contain a turbine whose impeller or impellers are driven by heated gas and which drives the impeller or impellers of a rotor forming part of a compressor serving to compress the thus cooled and expanded gaseous lasing medium prior to reentry into the resonator or resonators. A first heat exchanger is installed between the turbine and the compressor, and a second heat exchanger is provided downstream of the compressor.