Study of dual‐hyperchaos synchronization between an erbium‐doped fiber three‐ring laser and an erbium‐doped fiber dual‐ring laser, and their applications to dual‐channel encoding

Abstract

AbstractDual‐hyperchaos synchronization between an erbium‐doped fiber three‐ring laser and an erbium‐doped fiber dual‐ring laser is reported, a dual‐channel encoding and decoding scheme for secure communication. The communication system shows increased security because the three leading Lyapunov exponents are positive. Additionally the dual‐channel scheme enhances encoding flexibility. The result can be used as reference values for chaotic synchronization and for chaotic encoding technology.