OPTICAL NEGABINARY ADDITION WITH HIGHER-ORDER SUBSTITUTION RULES

Optical higher-order negabinary addition is investigated for fast oper ation. A new method for recognizing multiple reference patterns in a c hannel is presented, and thus the substitution rules are logically min imized, resulting in fewer channels for processing. A content-addressa ble-memory based incoherent optoelectronic symbolic substitution archi tecture is proposed. The system is simple and flexible, and the multi- channel operations for all the modules are performed in parallel. An e xperiment is demonstrated.