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Laser Beam Profiling System

Thu, 01/24/2013 - 9:23am

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Photon M2-1780Ophir Photonics Group has introduced the newest version of the Photon M2-1780, a laser beam profiling system that measures beam quality in real time. The M2-1780 measures the M2 beam propagation ratio and all associated ISO 11146 parameters instantaneously, at video rates over 20 Hz.

The M2-1780 is a CCD camera-based system that works with CW and pulsed lasers down to single shot rates. The CCD is sensitive to wavelengths from approximately 250 nm to 1,100 nm. The compact systems measure with NIST-traceable accuracy to better than 2%; this translates to M2 measurements with accuracy to -5%.

The system uses ten reflective surfaces to divide the laser beam caustic into ten slices. It then focuses them on the CCD detector, which allows the M2 and other propagation parameters to be determined in real time. The CCD sensor is divided into ten sectors and the beam is aligned such that each beam measurement position is in one of the boxes. Once aligned, integrated software reports the parameters for each frame the CCD acquires.

The M2-1780 works in conjunction with Photon's FireWire BeamPro Acquisition and Analysis software.

Ophir Photonics, www.ohpiropt.com

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