This paper presents a study on gain dynamics of EDFA chains in long-haul optical networks along with candidate solutions to alleviate the adverse effects caused by EDFA gain fluctuations and the corresponding results.
Node architectures which are currently being considered for wavelength-routed WDM optical networks do not provide a high degree of scalability with respect to the number of wavelengths in the system. In this investigation, we propose a new node architecture which allows new wavelengths to be added to the network without signiicant additional costs. We study… (More)
Today's telecommunication networks employ optical fibers almost at all levels along with wavelength-division multiplexing (WDM) technology. This paper presents an overview of the design methodologies for optical WDM networks in presence of transmission impairments in physical layer.