Beam Parameters. The light emitted from a Nd:YAG laser at a wavelength of 1.06 um is a Gaussian beam of 1-W optical power and beam divergence 200 = 1 mrad. Determine the beam waist radius, the depth of focus, the maximum intensity, and the intensity on the beam axis at a distance z = 100 cm from the beam waist.

Beam Parameters. The light emitted from a Nd:YAG laser at a wavelength of 1.06 um is a Gaussian beam of 1-W optical power and beam divergence 200 = 1 mrad. Determine the beam waist radius, the depth of focus, the maximum intensity, and the intensity on the beam axis at a distance z = 100 cm from the beam waist.