Beam Calculations

Beam Focusing Calculations

Enter laser wavelength, beam waist diameter, waist to lens distance, focal length of focusing lens and beam divergence then click "Focusing Calculations" button for the results.

Wavelength (µm)
Waist Diameter (mm)
Waist To Lens (m)
Focal Length (mm)
Divergence (Full Angle) (mrad)


Beam Size at Lens (mm)
Focused Spot Size (mm)
Distance to Focus (mm)
Rayleigh Range (mm)
K
Optimal M2
New Divergence (mrad)

Note: Copyrights may exist on the script coding for these utilities
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