Compact planar-integrated optical correlator for spatially incoherent signals.
A new, to our knowledge, approach for the planar integration of optical correlators is demonstrated. A VanderLugt-type architecture was used to allow the processing of the spatially incoherent signals of active optoelectronic smart-pixel-device arrays. In a folded optical system all passive components were implemented as a single multiple-phase-level element. The relations among the spatial resolution, the light efficiency, and the system design parameters are derived. High signal quality and low noise levels were achieved experimentally.
Eckert
W
W
Lehrstuhl fr Optische Nachrichtentechnik, FernUniversität Hagen, Feithstrasse 140yPRG, D-58084 Hagen, Germany. w.eckert@online.de
Arrizón
V
V
Sinzinger
S
S
Jahns
J
J