Method and means of beam apodization

Details Method and means of beam apodization Method and means of beam apodization

G - Physics

02

B

88/96.2

G02B 27/00 (2006.01)

Patent

CA 1216184

Method and Means of Beam Anodization Abstract An electromagnetic radiation beam with Gaussian intensity profile is at least partly anodized by conically scanning the beam. The beam could alternatively have a non-Gaussian profile with a symmetry about its maximum and its point of inflection. Wedge prisms are rotated to effect deflection of a laser beam so that an anodized time-averaged uniform distribution is obtained in the far field. Over-apodization produces an intensity profile which provides a highly sensitive means for detecting relative motion, such as optical tracking.

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