# 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 Beam Calculations

## Read more about this

## Laser Calculators

### Laser Focusability Calculator

For a collimated beam, the diffraction-limited focal spot size of a laser beam depends on its wavelength

### Temperature Rise Calculator

Calculator for Temperature Rise in Uncooled Laser Power Sensors

### Laser Focal Spot Size Calculator

Use this calculator to get the size and location of your Gaussian laser beam waist at focus, as well as the Rayleigh range.

### 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…

### Laser Peak Power Calculator

Use this calculator to determine the peak power of your laser beam.

### Power Density Calculator

What is this calculator for? Use this calculator to determine the power density and/or fluence (energy density) of your laser beam.