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Flexible metro network architecture based on wavelength blockers and coherent transmission

: Dochhan, A.; Emmerich, R.; Berenguer, P.W.; Schubert, C.; Fischer, J.K.; Eiselt, M.H.; Elbers, J.-P.


45th European Conference on Optical Communication, ECOC 2019
London: IET, 2019
ISBN: 978-1-83953-185-9
4 S.
European Conference on Optical Communication (ECOC) <45, 2019, Dublin>
Fraunhofer HHI ()

A flexible semi-filterless architecture for metro DWDM networks with ring- or horseshoe topologies is presented. ROADM nodes are based on wavelength blockers. Coherent transmission enables filterless channel selection. Critical parameters are determined and a 4-span, 160-km horseshoe with 100Gbit/s DP-QPSK and 200Gbit/s DP-16QAM is demonstrated.