18+ Gaussian Beam Calculator. Calculate the 1/e^2 spot diameter and depth of field of a focused gaussian laser beam with wavelength, beam diameter, lens focal length and beam quality. This calculator computes the fraction and absolute power of a gaussian laser beam that passes through a circular aperture.

It takes various input parameters. [ i = frac{2p}{pi w^2} ] where: The transmitted fraction is given by where is the radius of the.


