Numerical Study to Design an Optical Node for Metropolitan Networks

  • Lee, Jong-Hyung (Department of Electronic Engineering, Dongeui University)
  • Received : 2019.09.10
  • Accepted : 2019.09.26
  • Published : 2019.11.30


We design a reconfigurable optical node for metropolitan WDM networks, and numerically study the capability of the node in the optical signal level. Unlike a long-haul WDM system, major limitations of metropolitan WDM systems are power loss, fiber dispersion and optical signal-to-noise ratio(OSNR) degradation due to EDFAs. Therefore, we include the behaviors of transmitter and receiver, and fiber, EDFAs, and optical filters(MUX/DeMux) in numerical simulations with varying parameters over wide range. From simulation results, we can identify the maximum span numbers for OC-48 and OC-192 to achieve $BER<10^{-12}$ using the node structure at various received powers and residual dispersions.


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