Power measuring device HP-MSM-HB

densitylevelradiation

Specifically for brilliant high power lasers, expanded with a HighBrilliance option: The PRIMES HighPower-MicroSpotMonitor-HighBrilliance (HP-MSM-HB) can determine power density distributions of SM lasers up to 10 kW average power directly in the focal plane. Measuring Focal Geometries of Multi-kW Lasers NIR lasers with high beam quality and high average power are increasingly being employed in laser material processing. With these lasers, focal geometries in the range of 20 to several 100 micrometers can be achieved. No known material can resist the resulting power densities up to the GW/cm² range for long. At this radiation level, conventional scanning measurement techniques for analysis are ruled out. PRIMES has expanded the camera-based focus analysis system, the MicroSpotMonitor (MSM) by a HighBrilliance option specifically for finely focussed high-power lasers. The HighPower-MSM-HighBrilliance determines beam parameters of focused laser beams of multi-kilowatt lasers in the range of 20 micrometres up to a millimetre directly in the process zone – even at full power. For this purpose, 95% of the laser power is transmitted by a beam splitter through the measurement optic, and absorbed. The remaining five per cent are further attenuated in the measurement optic and destroyed by internal water-cooled absorbers. A part beam with a few milliwatts of power is imaged on the CCD sensor in an enlargement.