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Proceedings Paper

Pseudorandom encoding of fully complex modulation to biamplitude phase modulators
Author(s): Robert W. Cohn; Wenyao Liu
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Paper Abstract

Pseudorandom encoding is a statstica11ybased, pixel-by-pixel mapping of complex valued modulations Auto modul6tors that do not produce a!! comp1e values.' The resulting far-field 1iffraction pattern closely approximates that from the desired, but unimplementabic, complex modulation. Since the methed is point-oriented, the desired complex modulation can be synthesized and encoded without resorting to time consuming constrained global optimizations e.g. simulated anneding,4 genetic,3 and Gerchberg Saxton4 algorithms. In addition to reducing design time, the resulting diffraction patterns can have reasonably high diffraction efficiencies and low levels of background noise.

Paper Details

Date Published: 25 September 1996
PDF: 4 pages
Proc. SPIE 2894, Detectors, Focal Plane Arrays, and Applications, (25 September 1996); doi: 10.1117/12.252097
Show Author Affiliations
Robert W. Cohn, Univ. of Louisville (United States)
Wenyao Liu, Univ. of Louisville (United States)

Published in SPIE Proceedings Vol. 2894:
Detectors, Focal Plane Arrays, and Applications
William G. D. Frederick; Junhong Su; Marc Wigdor, Editor(s)

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