PRODUCT UPDATE
PRODUCT UPDATE
TEST AND MEASUREMENT
BeamWatch non-contact beam monitoring
Ophir Photonics has released the newest version of BeamWatch, a non-contact beam monitoring system for high power YAG, fibre, and diode lasers used in industrial material processing applications. The new version features 3D views of laser beam caustic and ellipticity for a quick and realistic initial display. BeamWatch charts all beam measurements over time. This allows users to trace waist width and location during setup to determine when the beam is aligned and in focus. The time charts feature is also useful for high power laser users, who can now monitor how beam characteristics change as the laser is used over long periods of time. BeamWatch features high magnification optics that measure beams dynamically with spot sizes down to 55µm. This allows for instant readings, so rapid correction of large area cosine changes. This means smaller, higher accuracy welds and cuts, and reduced variability across parts. Unlike conventional measurement systems that place a probe in the beam, causing potential damage and slowing the measurement process, BeamWatch measures the Rayleigh scatter of the beam, so there is no contact, so
Pronto power meters
Gentec Electro-Optics has launched a new member in its Pronto family of compact laser power meters. The Pronto-Si presents a 1cm2
silicon sensor, the largest in its category
according to the company, perfect for measuring very low powers.
When combined with the integrated slide-in OD1 attenuator, the total power range of the
no power restrictions; the system has been used successfully on high power lasers up to 100kW. The device takes measurements every 60ms, giving instant readings of focus spot size and beam position, as well as dynamic measurements of focal plane location during process start-up. BeamWatch is a lightweight, compact system that monitors high power lasers in the 980- 1,080nm range. It measures key beam size, position, and quality parameters, including focus spot size, waist width, and beam propagation parameter (M2
). The technician
user interface provides access to the tools needed for start-up and advanced beam diagnostics. The system also includes tools to support automation clients written in Visual Basic for Applications (VBA), C++, CLI, or any .Net compliant environment, such as LabView or Microsoft Excel. Ophir has also introduced the 3A-PF-12 thermal power and energy laser measurement sensor for short pulsed lasers. The 3A-PF-12 is sensitive and can measure powers from 15µW up to 3W, and energies from 20µJ to 2J.
www.ophiropt.com/photonics
Pronto-Si extends from 0.3nW to 800mW. The measurements are carried out in continuous mode, so the engineer can install the device in the laser beam path and leave it there indefinitely. The internal memory also allows transfer of data to a PC for further analysis. The sensor has a slim profile of 6mm, allowing it to be used in very tight spaces.
www.gentec-eo.com
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LASER SYSTEMS EUROPE ISSUE 30 •SPRING 2016
@lasersystemsmag |
www.lasersystemseurope.com
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