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Performance of erbium-doped fiber amplifier cascades in WDM multiple access lightwave networks

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4 Author(s)
Ali, M.A. ; Dept. of Electr. Eng., City Coll. of New York, NY, USA ; Elrefaie, A.F. ; Wagner, R.E. ; Ahmed, S.A.

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.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:6 ,  Issue: 9 )

Date of Publication:

Sept. 1994

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