Apparatus for measuring the radiation capacity of lasers

US5209567A · kind A · utility

Assignee

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

Inventors

• Peter Loosen · Stolberg, DE
• Volker Sturm · Wiesloch, DE
• Alexander J. Drenker · Aachen, DE

Key dates

• Filing date: Feb 12, 1991
• Grant date: May 11, 1993
• Expiry date: Feb 12, 2011

Classification

• Technology area (CPC G): Physics
• CPC primary: G01J2001/0481
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Apparatus for measuring the radiation power of lasers, particularly infrared lasers, with a thermal detector, which supplies a power-caused measurement signal. In order to be able to measure rapid laser radiation power changes, the apparatus is so constructed that there is a device which locally integrates the laser radiation and to which, apart from the thermal detector, is connected at least one further detector, which is able to detect radiation power changes with a larger band width than the band width detectable by the thermal detector and that there is a circuit combining the measurement signals of the detectors.