Method and apparatus for generating laser radiation having multiple wavelengths with synchronized and spatially overlapping beam propagation

US5210764A · kind A · utility

Assignee

• Max-Planck-Gesellschaft zur Föderung der Wissenschaften e.V. · US

Inventors

• Hermann Bucher · Aachen, DE
• Werner Fuss · Garching bei München, DE
• Wolfram Schmid · Eislingen/Fils, DE

Key dates

• Filing date: Jul 25, 1991
• Grant date: May 11, 1993
• Expiry date: Jul 25, 2011

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/127
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

The present invention relates to a method and an apparatus for gerating pulsed laser radiation which contains components at several freely selectable wavelengths. Multi-wavelength emission is synchronized in time, propagates in a precise spatial overlap and has the same beam parameters on a common propagation direction. A preferred embodiment of an apparatus for a such method is a low pressure CO.sub.2 laser gas discharge in conjunction with a multi-wavelength resonator including a Q switch.