Title :
Noise in distributed erbium-doped fibers
Author :
Rottwitt, Karsten ; Pøvlsen, Jorn H. ; Bjarklev, Anders ; Lumholt, Ole ; Pedersen, Bo ; Rasmussen, Thomas
Author_Institution :
Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
Theoretical limits in noise figure for a long-haul transmission line based on lumped amplification are contrasted with distributed amplification. The latter results in a reduction of approximately 60% of the required number of pump power stations. The distributed optical amplification is provided by an erbium-doped fiber and comparisons of aluminum and germanium as codopant materials are shown. The pump power consumption and noise figure are analyzed with respect to the background loss.<>
Keywords :
erbium; fibre lasers; noise; optical links; optical losses; optical pumping; Er-doped fibres; as codopant materials; background loss; distributed Er fibre amplifiers; distributed erbium-doped fibers; distributed optical amplification; long-haul transmission line; lumped amplification; noise figure; optical links; optical loss; pump power consumption; pump power stations; Aluminum; Energy consumption; Germanium; Noise figure; Optical materials; Optical noise; Power generation; Power transmission lines; Stimulated emission; Transmission line theory;
Journal_Title :
Photonics Technology Letters, IEEE
