A Numerical Analysis of R-EDFA for Long Haul Optical Fiber Communication System

Abstract: This paper presents a simple and efficient design process of a remotely pumped optimized Erbium doped fiber amplifier (R-EDFA) for repeaterless long haul optical fiber communication system (OFCS) by the numerical analysis of EDFA rate equation model. The length of Erbium doped fiber (EDF) is optimized using very low remote pump power. The effect of pump power, signal power, signal wavelength and amplified spontaneous emission (ASE) on the gain and noise figure (NF) of R-EDFA is described in details using the numerical simulation of the EDFA rate equation model. Using these findings as well as considering high gain and low NF of R-EDFA as main design objectives, the designers are able to carry out the design of an optimized R-EDFA for long haul OFCS by following the proposed design process. Key words: Erbium-doped fiber amplifier, Optical fiber communication system, Remote pump power