Pseudorandom encoding of fully complex modulation to biamplitude phase modulators

Robert W. Cohn; Wenyao Liu

doi:10.1117/12.252097

25 September 1996 Pseudorandom encoding of fully complex modulation to biamplitude phase modulators

Robert W. Cohn, Wenyao Liu

Proceedings Volume 2894, Detectors, Focal Plane Arrays, and Applications; (1996) https://doi.org/10.1117/12.252097
Event: Photonics China '96, 1996, Beijing, China

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.

Citation Download Citation

Robert W. Cohn and Wenyao Liu "Pseudorandom encoding of fully complex modulation to biamplitude phase modulators", Proc. SPIE 2894, Detectors, Focal Plane Arrays, and Applications, (25 September 1996); https://doi.org/10.1117/12.252097

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