Title :
Gain control in EDFA´s by pump compensation
Author :
Tancevski, L. ; Rusch, L.A. ; Bononi, A.
Author_Institution :
Corp. Res. Center, Alcatel Network Syst., Richardson, TX, USA
Abstract :
Gain control by means of pump compensation in cascades of erbium-doped fiber amplifiers (EDFAs) is analyzed. Based on analytical expressions for the 1-dB rise/fall time for the case of channels add/drop, required pump power changes at each amplifier are derived in the form of simple closed expressions. Numerical simulations of a system comprising 20 wavelength division-multiplexed channels transmitted through a cascade of 35 EDFAs are performed demonstrating the effectiveness of the gain control.
Keywords :
compensation; erbium; fibre lasers; gain control; optical communication equipment; optical pumping; EDFA; Er-doped fiber amplifiers; gain control; pump compensation; wavelength division-multiplexed channels; Doped fiber amplifiers; Erbium-doped fiber amplifier; Gain control; Numerical simulation; Optical amplifiers; Optical fiber communication; Power amplifiers; Power generation; Steady-state; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
