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Re: [ATM] Bench star test

Correction: theta is only half the beam divergence, so the aperture is twice
as wide:
0.74 x 2.96 microns

> In the 5mW - 650nm device I used, the beam divergence is given as 32 and 8
> degrees. The intensity profile is approximately gaussian, and therefore
the
> far field beam divergence is given by:
>       theta = lambda / (pi * waist)
> where waist is the aperture diameter, theta in radians.
> Hence in my case the aperture measures 0.37 x 1.48 micron.

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