BeamWatch® Integrated

BeamWatch® Integrated

Beam Profiling System for Automated Manufacturing

BeamWatch Integrated is a fully automated laser measurement system designed to integrate the measurement of critical laser beam parameters on industrial production lines. Based on BeamWatch’s patented, non-contact profiling principle, BeamWatch Integrated offers contactless and simultaneous measurement of all critical laser beam parameters in real time, while its built-in power meter delivers absolute power readings.

  • Measures all the critical laser beam parameters of the focused beam up to 10 kW power (up to 30 kW on request) Measured laser parameters include:
    • Waist (focus spot) width and location
    • Focal shift
    • Centroid
    • M2 or K
    • Divergence
    • Beam parameter product
    • Rayleigh length
    • Beam tilt angle
    • Absolute power
  • Fully automated operation
  • Trend analysis with good/bad signal
  • Detailed report with time stamp
  • Works with different types of welding heads without changes to the measurement system
  • PROFINET/GigE interface (EtherNet/IP, CC-Link on request)
  • Rugged for industrial production environment
  • Short measurement time for frequent measurements during shift operation

With its shutter and rugged design, BeamWatch Integrated is a compact and self-contained system that can accommodate different types of welding heads. A variety of interfaces makes it possible to integrate the system into production networks and automated manufacturing lines to facilitate direct transfer of measurement data. The short measurement times allow the laser beam to be checked automatically during the loading / unloading phase, as frequently as once every produced unit. Additionally, all parameters can be read out using standard interfaces and – as part of the process monitoring – consistently documented for each individual component, as desired. Based on a large amount of measurement data, accurate trend diagrams can deliver useful insights for predictive maintenance. Tolerances and limit values can be set up for measured parameters to trigger corrective actions as needed. BeamWatch Integrated operates virtually without maintenance, because contactless measurement exerts no wear on the instrument.


  • 980-1080nm
  • ~100 W - 10 kW (up to 30 kW on request)
  • ISO 11146 Measurements
  • NIST traceable calibration ±3%
  • 12.5mm
  • GigE, PROFINET, EtherNet/IP, CC-Link
  • CE, RoHS, China RoHS
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    Beam profiling system for automated manufacturing

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  • BeamWatch Integrated

    The system can be manually operated by PC using BeamWatch, our full-function software with an extensive set of ISO quantitative propagation measurements, NIST calibrated power measurements, graphical representations of the beam caustic. Requires user supplied PC.
    The system can alternatively be operated automatically by PLC using PROFINET, EtherNet/IP or CC-Link. Tolerances and limit values can be set-up for desired measured parameters to trigger corrective actions. The trend charts give insights for early problem detection and predictive maintenance.
    In both case PDF and CSV reports can be generated.


Tutorials and Articles

How to Make Laser Welding and Cutting Affordable and Sustainable

Contactless Monitoring of the Focus Increases Product Quality

White Paper – ISO compliance of non-contact, real-time beam analysis

1. IntroductionDuring the past decade laser power levels used in production applications has risen significantly. Today, welding systems are commonly using laser power in the range of multiple kilowatts. To deliver continuously high product quality, the key parameters of the laser beam must be measured on a regular basis. Ophir has tackled the task and developed a non-contact measurement technology based on the Rayleigh scattering. The technology used in the BeamWatch laser beam profilers enables the measurement of high-power beams without ever touching the laser beam. As the technology is Read more...

White Paper - The challenge of battery production

Optimizing and controlling laser processes right from the start Read more...

White Paper – Keeping Your Additive Manufacturing Laser in Spec

There is little debate about how Additive Manufacturing is adding benefits and changing the face of manufacturing in our modern age. Additive Manufacturing allows for the manufacturing of more customized parts, using more specialized materials, and will eventually create a more localized, rapid, and agile distribution network than what have been used to. Read more...

Laser Measurements in Materials Processing: How and When They Absolutely, Positively Must Be Made

19th century British physicist and engineer William Thomson, 1st Baron Kelvin, was the first to say, “If you can’t measure it, you can’t improve it.” When applying this principle to improving laser-based processes, there are a variety of parameters that must be measured. Given the continuously rising power of laser systems in material processing, the requirements for measurement systems are more challenging than ever. Which technologies are available to measure high-power lasers? How often should they be measured? What measurements should be tracked? When this data is collected, what should be done with it? Read more...


The laser seam welding of sheets of zinc-coated steel – a combination of metals with disparate melting and evaporation properties – used to be a major challenge for the automotive industry. But Volkswagen AG is pursuing a promising approach with multi-focal laser welding: A newly developed process enables significantly higher welding speeds than is otherwise possible with conventional mono-focal laser beam welding systems. After a development period of just three years, the process was registered for a patent. The development of this multi-focal laser welding process was Read more...