All optical signal restoration for 10G DPSK system

Abstract

Ultrafast Kerr nonlinearity, offers various signal processing functions to be used. Several nonlinear transmission impairment such as phase noise, amplitude noise and power spectral efficiency loss become proficient to degrade the performance of optical systems, when intense power is launched in optical fiber. In modern communication system, all optical regeneration is one of the solution to mitigate transmission impairments instead of O-E-O conversion. In this paper, all optical regeneration is demonstrated for 10G DPSK system using 3R regeneration and phase sensitive amplification to mitigate amplitude and nonlinear phase noise form 10G noisy DPSK transmission system. Bit error rate of 10−12 is achieved at power penalty of 5 dBm. In developed system the novelty exist in compensating two noise simultaneously; ASE noise and phase noise using integrated algorithm developed using 3R and PSA. The system is developed and tested using commercial software package optisystem to check the feasibility of the system design in real time implementation. The developed all optical regeneration system is very demanding for long distance high-speed communication systems. The result conclude the positive feasibility for real time implementation of designed system.