Title :
Performance of erbium-doped fiber amplifier cascades in WDM multiple access lightwave networks
Author :
Ali, M.A. ; Elrefaie, A.F. ; Wagner, R.E. ; Ahmed, S.A.
Author_Institution :
Dept. of Electr. Eng., City Coll. of New York, NY, USA
Abstract :
A simple method to optimize individual EDFA performance parameters for multiwavelength operation in an amplifier cascade is presented. The pump power, pump wavelength, erbium-doped fiber length, and input signal levels and their spectral range are each optimized. We find that 980-nm pumping, together with an optimum amplifier length of 9 m, provides adequate performance for six 10 Gb/s WDM channels to be transmitted through a cascade of 27 amplifiers, allowing a total system gain of more than 350 dB without requiring gain equalization methods.<>
Keywords :
erbium; fibre lasers; multi-access systems; optical links; optical pumping; wavelength division multiplexing; 10 Gbit/s; 350 dB; 9 m; 980 nm; 980-nm pumping; WDM channels; WDM multiple access lightwave networks; erbium-doped fiber amplifier cascades; erbium-doped fiber length; gain equalization methods; individual EDFA performance parameters; input signal levels; multiwavelength operation; optimum amplifier length; pump power; pump wavelength; spectral range; total system gain; Erbium-doped fiber amplifier; Intelligent networks; Operational amplifiers; Optical amplifiers; Optical noise; Optical pumping; Optical receivers; Power amplifiers; Stimulated emission; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
