Hybrid WDM/TDM PON using the AWG FSR and featuring centralized light generation and dynamic bandwidth allocation

Flexibility evaluation of hybrid WDM/TDM PONs

“…This will lead to a smaller probability that the network will be overloaded. We define the network overloading factor (NOF) as the probability of the network [4]. In this architecture, each wavelength is routed to only one fixed TDM PON (or RN2).…”

Evaluation of flexibility in hybrid WDM/TDM PONs

“…This architecture is also extensively discussed in literature, e.g. [3]- [4]. Note that a separate AWG is depicted for the up-and downlink direction, as typically different wavelength bands are used for upstream (e.g., C-band, 1530 -1565 nm) and for downstream (e.g., Lband, 1565 -1625 nm).…”

Hybrid wavelength division multiplexing/time domain multiplexed (WDM/TDM) using radio over fiber technique with 16QAM at 2.5 Gbps

“…Many researchers have demonstrated the effectiveness of the different architectures of WDM-PON and hybrid WDM/TDM-PONs. In Bock et al (2005), the researchers proposed a shared tunable laser based hybrid WDM/TDM PON architecture. Each optical network unit (ONU) was assigned a wavelength for a particular time slot that connects to the optical line terminal (OLT), providing a comprehensive insight into the most relevant protection mechanisms for hybrid WDM/TDM PONs (Abhishek et al, 2012), where the architecture provided support to TDMPONs only.…”