Title :
Impacts of SPM/XPM on distributed Raman amplified multispan systems at identical nonlinear phase shift
Author :
Tong, Zhi ; Wei, Huai ; Jian, Shuisheng
Author_Institution :
Inst. of Lightwave Technol., Beijing Jiaotong Univ., China
fDate :
3/1/2004 12:00:00 AM
Abstract :
The influences of self-phase modulation (SPM) and cross-phase modulation (XPM) on Raman amplified multispan systems with periodic dispersion compensation (DC) are numerically investigated at identical nonlinear phase shift. The results show that compared with lumped amplification, distributed amplification tends to enhance the SPM/XPM-induced penalties provided per span complete DC is used. However, these performance differences can be canceled out by means of optimal dispersion managements. Useful guidelines for optimizing the dispersion maps of Raman amplified systems are demonstrated.
Keywords :
Raman lasers; optical communication equipment; optical fibre amplifiers; optical fibre dispersion; self-phase modulation; SPM/XPM; SPM/XPM-induced penalties; cross-phase modulation; dispersion compensation; dispersion maps; distributed Raman amplified multispan systems; distributed amplification; lumped amplification; nonlinear phase shift; self-phase modulation; Guidelines; Nonlinear equations; Optical fiber dispersion; Optical fiber polarization; Optical modulation; Optical noise; Phase modulation; Scanning probe microscopy; Signal to noise ratio; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.823728
