When we do Light Analysis, Beam Characterization, Laser Beam quality. We use Laser Beam Profilers.
laser spot analyzer beam quality analysis
This is the whole Laser Beam Profilers system .
The laser beam profiler displays and records the spatial intensity profile of a laser beam at a particular plane transverse to the beam propagation path. Since there are many types of lasers: ultraviolet, visible, infrared, continuous wave, pulsed, high-power, low-power. There are different laser beam profilers.