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Optical Engineering

Dammann Gratings For Laser Beam Shaping
Author(s): J. Jahns; M. M. Downs; M. E. Prise; N. Streibi; S. J. Walker
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Paper Abstract

Dammann gratings are binary phase gratings that are used to produce a one- or two-dimensional array of equal-intensity light spots. Recently, Dammann gratings have become of interest for their ability to provide the optical power supply to an array of optical logic devices from a single laser source. We present here a feasibility study of Dammann gratings, in which we consider several parameters that are important for the computation and fabrication of the gratings. As a result of this investigation we conclude that Dammann gratings are useful for array sizes up to about 40 x 40 spots. Above that size, problems with the computation of the gratings and with the resolution become dominant.

Paper Details

Date Published: 1 December 1989
PDF: 9 pages
Opt. Eng. 28(12) 281267 doi: 10.1117/12.7977142
Published in: Optical Engineering Volume 28, Issue 12
Show Author Affiliations
J. Jahns, AT&T Bell Laboratories (United States)
M. M. Downs, AT&T Bell Laboratories (United States)
M. E. Prise, AT&T Bell Laboratories (United States)
N. Streibi, AT&T Bell Laboratories (United States)
S. J. Walker, AT&T Bell Laboratories (United States)


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