FTTH Network Design TWDM-PON Configuration with Symmetrical and Asymmetrical Data Rates in Urban Areas

Fiber to the Home (FTTH) is important for internet access in urban areas.This research studies an FTTH design based on a Time-Wavelength Division Multiplexing Passive Optical Network (TWDM-PON) with symmetric and asymmetric data rate configurations for a 1:128 splitting ratio by using Optisystem.The considered design is simulated with a downstream scheme with a 10 Gbps data rate for both configurations, an upstream 10 Gbps data rate for symmetric data rate configuration, and an upstream 2.5 Gbps data rate for asymmetric data rate configuration.The symmetric configuration shows a loss budget of 26.96 dB at 20 km and Q-factors of 6.22 and 6.11, respectively, for downstream and upstream.Another configuration at 21 km shows a loss budget of 26.95 dB and Q-factors of 6 and 13, respectively, for downstream and upstream.It is found that the dispersion factor is more dominant than the attenuation factor in determining the reachable distance in the proposed design.The results can be a reference for developing a TWDM-PON network.