Dissertation
Dissertation > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Amplification technology,the amplifier > Amplifier

Research on Fiber Amplifier Based on DWDM System

Author CuiXiaoRong
Tutor GaoYan
School Henan Polytechnic University
Course Communication and Information System
Keywords Dense Wavelength Division Multiplexing Raman fiber amplifier Erbium-doped fiber amplifier Er-Yb co-doped fiber amplifier optisystem simulation Dispersion compensation
CLC TN722
Type Master's thesis
Year 2009
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In this era of information explosion , increasing the amount of information needs , information , large capacity, high transmission quality, reliability these requirements has brought great challenges to the backbone transmission system . The development of optical communications and dense wavelength division multiplexing technology raised temporarily to meet the requirements of the communication system . Erbium-doped fiber amplifier , low noise , gain characteristics compatible with the wavelength division multiplexing system , reducing the transfer costs , improve the quality of transmission , but the high concentration quenching limit the further development of the erbium-doped fiber amplifier ; erbium Yb co-doped fiber amplifier made ??not only to solve the problem of concentration quenching also makes fiber amplifier to maintain the original erbium-doped fiber amplifier gain performance , and provide a reference for long-distance , high-capacity transmission system , more future optical networks laid the foundation. Erbium- ytterbium co-doped fiber amplifier in hybrid fiber amplifier transmission system made ??simulation and analysis , specific work as follows : the use of a simulation model of ytterbium , erbium -doped fiber length and erbium ytterbium doping concentration was carefully screening, obtained for the system transmission length and erbium ytterbium doping concentration ratio ; based on the same conditions , the use of simulation software for traditional hybrid fiber amplifier ( FRA and EDFA ) and FRA and EYDFA of hybrid fiber amplifier transmission system in the rate of 2.5Gb / s, 10Gb / s , respectively, simulation, and they are analyzed and compared , and then each of these two systems in 10Gb / s , 40Gb / s transmission rate under different dispersion compensation techniques .

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