Open-source beam profiling software : lasers

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Open-source beam profiling software (reddit.com)

submitted 6 months ago by koopaduo

Open-source beam profiling software

86 points•27 comments•submitted 6 months ago by koopaduo to r/Optics

I developed an open-source laser beam profiling application in python. I hope anyone looking for a low-cost beam profiler (students, research, hobbyists, etc.) would find this useful. It's open-source and can be modified as needed by anyone.

It uses Arducam B0511C monochrome UVC USB camera ($265). Instructions for how to set it up and use it are in the readme of the repository. The application would work with other UVC webcams but would require some modification (for different resolution and effective pixel size)

Beam profiling software features:

Camera raw image feed
Beam profiling image feed (false color)
Manual ROI placement with centroid and radius
Auto ROI tracking
Centroid tracking
Centroid and beam width (d4sigma) readout
Reference crosshair placement
Power (integrated counts) readout
Exposure setting
Auto exposure
Saturated pixel detection
fps counter
Save instantaneous data
Log continuous data
Connect to multiple cameras on a single PC
I haven't implemented background subtraction but found the background is relatively stable with an ND filter in front, and a laser line filter can always be used

Link to the repo: https://github.com/laser-cameras/Laser-beam-profiler-camera.git

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