Popis: |
This paper aims to explore the ways of implementation for WDM technology that is specific for high capacity fiber optic systems, using FSO terrestrial links. It will study the peculiarities of the CWDM-SO versus DWDM-SO transmission, stating their limits (transmission distance versus BER for constant bitrate and atmospheric attenuation). It will calculate the BER value for each CWDM/DWDM channel, idealized and real conditions (with attenuation). The simulations will be made under Optiwave environment for a system with 8 CWDM/DWDM channels, performance evaluation being made using the eye diagram, WDM and optical spectrum analyzers. |