As a bonus, you will be able to measure both the beam profile and the power in real time on your computer.įigure 1: 12 kW fiber laser beam profile measurement setup If you want a good suggestion for a very resistant Lambertian surface to get your reflected beam profile, you should consider a Gentec-EO power meter, quite simply. We must avoid a surface that will have a specular reflection such as a mirror: you need a surface that will instead have a diffuse Lambertian reflection.
#Laser beem 3 wide at 100 feet disable camera install
If you install a camera lens in front of the sensor, such as our CL-25 camera lens, you will be able to image the beam profile indirectly by looking at its reflection on another surface. Therefore, if you shoot a laser directly at it, you will see the energy distribution of your laser. The sensor on the beam profiler is similar in size and behavior to one that you would find in a reflex camera. What you can do if you want to measure a beam profile that is bigger than the sensor of the beam profiler is to work with a camera lens. Some sensors can even go up to 20mm X 20mm, but beware that the price of the camera increases with its sensor dimension.
Typically, a beam profiling camera sensor is about 1 cm width or smaller. What we will cover here is what to do when the beam doesn’t fit in your beam profiler sensor. It’s a challenge that we won’t cover here.
Laser beams tend to be very small when you want to look at the beam profile at their focal point or when they are collimated.
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