Optical Encryption With OCDMA Code Swapping Using All-Optical xor Logic Gate

Abstract

A novel optical code-division multiple access (OCDMA) transmission system with all-optical exclusive or (XOR) encryption architecture is proposed and demonstrated. This all-optical system conducts OCDMA code swapping based on XOR operation. This multilayer approach eliminates radio-frequency data radiation and improves the confidentiality of the transmission system.