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Laser specifications change over time for many reasons and it causes problems accross all industries. Learn about how laser output measurement solves numerous problems in YOUR industry. Download the guide below.   Gentec-EO's high-accuracy laser beam measurement instruments help engineers, scientists and technicians in all sorts of laser applications from the factory to the hospital, laboratory and research center. Learn about our solutions for these measurement types: Laser power meters Laser energy meters Laser beam profilers Terahertz power meters

Beam size is just one of the parameters that can be measured in lasers. At Gentec-EO, we specialize in laser power & energy measurement and beam profiling instruments. Explore laser beam measurement solutions.

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Some lasers have what's called a gaussian profile, where the intensity is highest in the center of the beam and then tapers off gradually according to a specific formula. Other lasers known as flat-tops have a more "on or off" intensity distribution. All lasers can have irregularities in their profile.

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Portable laser power meter for up to 250 W with flexible calibration options so the customers only pay for what they use. Includes 3 measurement modes : SSP, CWP and SSE.

Once you have your beam size, you can get more information about the laser beam using the area & power density calculator.

Gentec-EO's high-accuracy laser beam measurement instruments help engineers, scientists and technicians in all sorts of laser applications from the factory to the hospital, laboratory and research center. Learn about our solutions for these measurement types:

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The 1/e2 definition of beam width is the distance between 2 points where the intensity falls to 1/e2 (13.5%) of the maximum

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Because measurement location impacts beam size, standard beam size characteristics are measured at the focal point. 2 important metrics are:

There are 4 common beam width definitions, which each give a different answer to the question: "where does a laser’s spot end?"

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FWHM (Full Width Half Maximum) defines beam width as the distance between the 2 points where the beam's intensity falls to 50% of its maximum.

Laser beams change as they propagate. Not (only) because the experimental setup has problems, but because even perfect textbook lasers diverge.

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The D4σ beam width definition is the international ISO standard. It is computed automatically by the BEAMAGE-4M beam profiler.

D4σ is the only beam width definition that takes into account how the intensity varies (instead of just looking for one specific cut-off threshold).

Laser power detector for measurement up to 50 000 W that traps > 97 % of the incident light and handles high intensities of small beams.

The cross-section of a laser is the "spot" you see when you shine it directly at a wall. Beam size essentially measures how wide that spot is.

Laser specifications change over time for many reasons and it causes problems accross all industries. Learn about how laser output measurement solves numerous problems in YOUR industry. Download the guide below.