Title :
Comparison of the performance of optically amplified transmission systems
Author :
Matera, Francesco ; Settembre, Marina
Author_Institution :
Fondazione Ugo Bordoni, Rome, Italy
fDate :
1/1/1996 12:00:00 AM
Abstract :
In this paper, we show a comparison among the performance of single- and multichannel optical systems considering NRZ and soliton signals. The results have been obtained by means of numerical simulations, taking into consideration the chromatic dispersion, the Kerr nonlinearity, the fiber loss, and the ASE noise of the optical amplifiers. The performance of IM-DD and coherent asynchronous ASK systems have been evaluated in terms of the Q factor. We have considered the propagation in links encompassing conventional step-index fibers, DS fibers and in links with two different dispersion management techniques in which the chromatic dispersion is varied along the propagation distance both in randomly and in deterministically way. The effects of the in-line filtering process are mainly investigated in soliton propagation
Keywords :
amplitude shift keying; optical Kerr effect; optical fibre communication; optical fibre dispersion; optical fibre losses; optical modulation; optical noise; optical solitons; refractive index; superradiance; ASE noise; DS fibers; IM-DD; Kerr nonlinearity; NRZ signals; Q factor; chromatic dispersion; coherent asynchronous ASK systems; dispersion management techniques; fiber loss; in-line filtering process; multichannel optical systems; numerical simulations; optical amplifiers; optically amplified transmission system performance comparison; propagation distance; single-channel optical systems; soliton propagation; soliton signals; step-index fibers; Chromatic dispersion; Numerical simulation; Optical fiber amplifiers; Optical fiber losses; Optical filters; Optical noise; Optical signal processing; Optical solitons; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
