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• Project leaflet (PDF)

First, the most cost-effective transmission technology for 100 Gb/s Ethernet payloads for long-haul core networks, with a focus on coherent-detection of polarisation-multiplexed multilevel symbols (CP-QPSK). The optical signal has a high spectral efficiency of 2 bit/sec/Hz and reduces the symbol rate to 25Gbaud, enabling electronic equalization of both CD and PMD effects. It can be used in existing fiber infrastructure without additional tunable DC or PMD compensators - a key differentiating factor with respect to 50 Gbaud DQPSK and 100 Bgaud OOK transmission formats. With most of the receiver-side functionality operating in the digital domain, this part of the transceiver can take advantage of Moore's law once tranceiver volumes rise.

Second, besides the 100 Gb/s transmission aspects, networking aspects are extensively studied. This integrated approach is important as in the near term, 100 Gb/s transmission technology is deemed a solution for high-end applications with short as well as longer reach, e.g. in metro and long-haul transport networking. Being no mass product like FE and 1GE, the aforementioned attributes of Ethernet networking will only be achieved by taking into account multi-layer and multi-domain aspects which reduce complexity, offer tailor-made functionality and enable network operators to provide transport-like end-to-end quality of service (QoS).