Title :
Simulation of ASE noise accumulation in a wavelength add-drop multiplexer cascade
Author :
Antoniades, N. ; Roudas, I. ; Wagner, R.E. ; Habiby, S.F.
Author_Institution :
Center for Telecommun. Res., Columbia Univ., New York, NY, USA
Abstract :
This letter presents a computer simulation of a cascade of wavelength add-drop multiplexers (WADMs) each consisting of optical amplifiers, a multiplexer/demultiplexer pair, gain equalizing attenuators and 2/spl times/2 optical switches. It is shown that one of the eight wavelengths can propagate through more than 50 equidistant WADMs in a wavelength-division multiplexed (WDM) optical network before its optical signal-to-noise ratio (SNR) drops below acceptable levels. These simulations indicate that a national scale transparent WDM network is feasible.
Keywords :
demultiplexing equipment; multiplexing equipment; optical fibre networks; optical noise; optical switches; simulation; superradiance; wavelength division multiplexing; 2/spl times/2 optical switches; ASE noise accumulation simulation; WDM optical network; computer simulation; equidistant WADMs; gain equalizing attenuators; multiplexer/demultiplexer pair; national scale transparent WDM network; optical amplifiers; optical signal-to-noise ratio; superradiance; wavelength add-drop multiplexer cascade; wavelength-division multiplexed; Add-drop multiplexers; Computational modeling; Computer simulation; Optical attenuators; Optical fiber networks; Optical noise; Semiconductor optical amplifiers; Stimulated emission; WDM networks; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
