Options for cost-effective capacity upgrades in backbone optical networks

Behnam Shariati, Jose M. Rivas-Moscoso, Dimitrios Klonidis, Ioannis Tomkos, Shalva Ben-Ezra, Felipe Jimenez, Dan M. Marom, Pouria Sayyad Khodashenas, Jaume Comellas, Luis Velasco

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

Upgrading the capacity of backbone optical networks while delivering contents to the end-users with a reduced cost per bit is a day-by-day challenge of network operators. In this paper, we first discuss several mid-term options for capacity upgrades including migration to multi-fibre and multi-band systems (utilizing amplification systems with bandwidth extending over the C+L or the S+C+L bands). The multi-band approach is shown to be more cost-effective than the multi-fibre approach under certain circumstances. We then focus on space-division multiplexing (SDM) based networks as the ultimate solution to address the capacity crunch. We compare the performance and infrastructure cost of possible SDM switching options for a solution based on bundles of single-mode fibres as a first pragmatic generation of SDM networks. We show that the use of spatial-group switching reduces the switching-related infrastructure cost of the SDM network and can also lead to extra cost savings due to sharing of elements in other parts of the network.

Original languageEnglish
Title of host publication2016 21st European Conference on Networks and Optical Communications, NOC 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages35-40
Number of pages6
ISBN (Electronic)9781509002962
DOIs
StatePublished - 7 Jul 2016
Event21st European Conference on Networks and Optical Communications, NOC 2016 - Lisbon, Portugal
Duration: 1 Jun 20163 Jun 2016

Publication series

Name2016 21st European Conference on Networks and Optical Communications, NOC 2016

Conference

Conference21st European Conference on Networks and Optical Communications, NOC 2016
Country/TerritoryPortugal
CityLisbon
Period1/06/163/06/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

Keywords

  • Multi-band
  • Raman systems
  • SDM switches
  • Spatial super-channel
  • network cost

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