Realization of High Speed All-Optical Logic Gates based on the Nonlinear Characteristics of a SOA

Abstract

Objectives: In this paper the method to overcome the bit rate limitations caused by dual conversion of the signal has been examined. Taking this phenomenon as base for this paper, a novel and potentially integrable circuit design is proposed for the realization of all-optical logic gates based on non-linear properties of SOA. Methods/Statistical Analysis: For this purpose a relatively new method to achieve larger transmission capacity and longer transmission distance with high data rates by employing many logic XOR, AND, OR, NOT gates based on non-linear characteristics of Semiconductor Optical Amplifier (SOA) in optical communication systems is used. Findings: This is done by eliminating the need of optoelectronics conversions and therefore the data remains in the optical domain. This XOR, AND, OR and NOT gate can be executed on 60 gigabits per second on any bit sequence in order to achieve such a high data rate. Application/Improvement: Its application includes Agile radar aircraft antenna system, control of electronic automatic RF attenuator, Automotive courtesy light etc.