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Beam Parameters. The light emitted from a Nd:YAG laser at a wavelength of 1.06 μm 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.

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