Accession Number : ADP006992

Title :   Evaluation of Theoretical Limits of Cascaded EDFA Transmission Systems,

Corporate Author : ALCATEL ALSTHOM RECHERCHE MARCOUSSIS (FRANCE)

Personal Author(s) : Audouin, O. ; Prigent, L. ; Blondel, J. P. ; Hamaide, J. P. ; Gabriagues, J. M.

Report Date : 22 MAY 1992

Pagination or Media Count : 4

Abstract : In the future optical transmission systems, it is likely that Erbium doped fiber optical amplifiers will replace present electrical regenerators. Both experimental studies (1, 2) and computer simulations (3-5) have investigated the feasability of non-regenerated optical long haul systems. A considerable number of parameters are determining the overall performances of the transmission link. In this paper, we report on theoretical studies carried out using numerical simulations in order to investigate the limits of such systems. We have considered both cases of 5 Gbit/s and 10 Gbit/s transmission. The theoretical limit value of the amplifier spacing, as imposed by group velocity dispersion (GVD), self phase modulation (SPM) and accumulated amplified spontaneous emission (ASE) has been evaluated.

Descriptors :   *AMPLIFIERS, *TRANSMITTING, COMPUTERS, ERBIUM, FIBERS, GROUP VELOCITY, PARAMETERS, PHASE, SIMULATION, VALUE, VELOCITY, DIODES.

Subject Categories : Electrical and Electronic Equipment
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE