# Laser Power Through Aperture Calculator (Gaussian Beam)

Gaussian laser beams have power intensities in the shape of a bell curve (Gaussian).

This means that the nominal diameter doesn’t include 100% of the laser beam’s power. A small portion of the power is contained in the edges, or wings, that spread past the nominal beam diameter. This is a simple calculator to see how much of the laser beam will pass through a given aperture.

### Laser Parameters

Adjust your parameters above and select 'Calculate' again to refine the values.

#### Laser Beam Calculations

Power through Aperture
:
(W)
% Power through Aperture
:
%

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### Laser Power Through Aperture Calculator (Gaussian Beam)

Gaussian laser beams have power intensities in the shape of a bell curve (Gaussian). This means that the nominal diameter doesn’t include 100% of the laser beam’s power. A small portion of the power is contained in the edges, or wings, that spread past the nominal beam diameter. This is a simple calculator to see…

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