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Optical hybrid bistability related to feedback configurations: an analysis.

A possible new way to drive hybrid optical devices based on a differential two-channel feedback configuration is presented. To verify the feasibility and characteristics of this approach, comparisons between two-channel and single-channel arrangements are reported. Several analogies and differences in operating conditions are also proved. From the point of view of application possibilities, the optical image obtained of an optical pulse exhibits time-discrimination characteristics, whereas in the single-channel case it shows discriminated intensity levels. This fact can be profitably used in parallel image processing systems.