A 135-km 8192-Split Carrier Distributed DWDM-TDMA PON With 2$\,\times\,$32$\,\times\,$10 Gb/s Capacity

SDN Enabled Dynamically Reconfigurable High Capacity Optical Access Architecture for Converged Services

“…Fast PON protection enabled by SDN control also allows the implementation of protection load balancing schemes, which allow substantial cost reduction in both IP and PON backup resources [5], by increasing the ability to share protection equipment across the network. This paper, based on the work presented in [6], substantially extends previous demonstrations of evolutionary access networks [4,[7][8][9]. For example the work presented in [4] focuses only on the SDN control plane aspects of a TDM-DWDM LR-PON and does not include integration with a realistic physical layer, while the demonstrations in [8][9] focus only on the physical layer and on statically allocated DWDM channels.…”

“…This paper, based on the work presented in [6], substantially extends previous demonstrations of evolutionary access networks [4,[7][8][9]. For example the work presented in [4] focuses only on the SDN control plane aspects of a TDM-DWDM LR-PON and does not include integration with a realistic physical layer, while the demonstrations in [8][9] focus only on the physical layer and on statically allocated DWDM channels. A very advanced demonstration of a time and wavelength division multiplexing (TWDM)-PON is reported in [7], which supports up to 1024 users over 40km reach, using 4+4 dynamically tunable channels in the up-and down-stream direction and also integrates protocol functionalities.…”

“…At the OLT the upstream signal is detected using the LBMRx [14], which is followed by a static electronic dispersion compensation (EDC)-clock data recovery (CDR) module [9]. The use of a LBMRx, compared to a more commonly used limiting BMRx is also necessary in order to preserve the pulse-shape of the signal that is then processed by the EDC [15].…”

REAM intensity modulator-enabled 10Gb/s colorless upstream transmission of real-time optical OFDM signals in a single-fiber-based bidirectional PON architecture

“…Most importantly, since ONU-side laser sources are not present, the ONU transceiver complexity is greatly simplified and consequently the overall WDM-PON installation cost is significantly reduced by a factor proportional to the total number ONUs accommodated simultaneously in the network. To achieve reflective intensity modulation-based cost-effective ONUs, the following reflective intensity modulators may be utilized, including, for example, reflective semiconductor optical amplifiers (RSOAs) [9][10][11], reflective electro-absorption modulators (REAMs) [12][13][14] and reflective Fabry-Perot lasers [15][16][17].…”

Demonstration of a 10 Gbit/s Long Reach Wavelength Converting Optical Access Network

“…Such a network can potentially lead to significant operational savings by reducing power consumptions as well as the footprint of the network [7].…”