A Novel Signal Regeneration Technique for High Speed DPSK Communication Systems

In long haul communication systems, the signal regeneration is frequently used technique that provides the long reach for high-speed transmission and reception systems. During high speed and distance transmission signal fades below a definite level due to transmission impairments; Bit error rate (BER) increases rapidly that degrades the system performance. In this work, a novel signal regeneration technique is proposed for 60 Gb/s differential phase shift keying transceiver system that transmits and receives the high-speed signal over single mode fiber at transmission distance of 300 km. The designed system is modeled mathematically and its real time simulation are demonstrated. It is examined that novel proposed technique is significantly regenerating the signal for 300 km fiber length. The proposed technique has achieved the BER of 10⁻¹⁹ with eye open diagram in the presence of high amplitude noise, phase noise and dispersion per kilometer in optical fiber transmission. At the receiver, the proposed system has adequately mitigated the amplitude noise up to 88% and phase noise up to 89% from the transmitted signal. The proposed system will be helpful for system design engineer to design high-speed communication with required BER before its physical realization to provide quality performance for future generation high-speed communication system.