Title :
Observation of collision induced temporary soliton carrier frequency shifts in ultra-long fiber transmission systems
Author :
Andrekson, Peter ; Olsson, N. Anders ; Simpson, J.R. ; Tanbun-Ek, T. ; Logan, R.A. ; Wecht, K.W.
Author_Institution :
AT&T Bell Lab., Murray Hill, NJ, USA
fDate :
9/1/1991 12:00:00 AM
Abstract :
Multiwavelength soliton interaction over 10000 km in an Er3+ -doped fiber amplifier based system is studied in a fiber loop configuration. Collisions that takes place over distances significantly longer than amplification period are found to produce nonpermanent shifts of the soliton carrier frequencies, thus acting as collisions in a lossless medium. The spectral shift is found to be inversely proportional to the wavelength separation and is reduced with increasing pulse width. The effects of these unavoidable collisions will impose a limit on the minimum channel spacing in ultra-long-haul soliton based communication systems
Keywords :
erbium; fibre lasers; optical fibres; optical links; solitons; 10000 km; Er3+-doped fiber amplifier based system; channel spacing; collision induced temporary soliton carrier frequency shifts; fiber loop configuration; lossless medium; multiwavelength soliton interaction; pulse width; spectral shift; ultra-long fiber transmission systems; wavelength separation; Channel spacing; Communication systems; Frequency; Optical amplifiers; Optical fiber amplifiers; Optical pulses; Pulse amplifiers; Solitons; Space vector pulse width modulation; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
