Flexible metro network architecture based on wavelength blockers and coherent transmission

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.

[1]  Francesco Musumeci,et al.  Filterless and Semi-Filterless Solutions in a Metro-HAUL Network Architecture , 2018, 2018 20th International Conference on Transparent Optical Networks (ICTON).

[2]  T. Chikama,et al.  Fully dynamic and reconfigurable optical add/drop multiplexer on 0.8 nm channel spacing using AOTF and 32-wave tunable LD module , 2000, Optical Fiber Communication Conference. Technical Digest Postconference Edition. Trends in Optics and Photonics Vol.37 (IEEE Cat. No. 00CH37079).

[3]  Carsten Schmidt-Langhorst,et al.  Colorless C-band WDM system enabled by coherent reception of 56-GBd PDM-16QAM using an high-bandwidth ICR with TIAs , 2017, 2017 Optical Fiber Communications Conference and Exhibition (OFC).

[4]  A. Bogoni,et al.  Semi Filter-Less Drop & Waste Network Demonstration with Integrated SOI Optical Filter , 2017, 2017 European Conference on Optical Communication (ECOC).

[5]  F. Fresi,et al.  Filterless Optical WDM Metro Networks Exploiting C+L Band , 2018, 2018 European Conference on Optical Communication (ECOC).

[6]  L. E. Nelson,et al.  Colorless reception of a single 100Gb/s channel from 80 coincident channels via an intradyne coherent receiver , 2012, IEEE Photonics Conference 2012.

[7]  Eric Bernier,et al.  Filterless optical networks : a unique and novel passive WAN network solution , 2007 .

[8]  Klaus Grobe,et al.  Wavelength Division Multiplexing: A Practical Engineering Guide , 2013 .

[9]  N. Uehara,et al.  LCOS-Based Wavelength Blocker Array With Channel-by-Channel Variable Center Wavelength and Bandwidth , 2011, IEEE Photonics Technology Letters.