Prospects and Challenges of Multi-Layer Optical Networks

Ken-ichi SATO

IEICE TRANSACTIONS on Communications   Vol.E90-B    No.8    pp.1890-1902
Publication Date: 2007/08/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.8.1890
Print ISSN: 0916-8516
Type of Manuscript: Special Section SURVEY PAPER (Special Section on Feature Topics on Latest Trends in Optical Networks)
Category: Traffic Engineering and Multi-Layer Networking
optical path,  waveband,  photonic network,  multi-layer optical paths,  optical cross-connect,  

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This paper investigates the prospects and challenges of hierarchical optical path networks. The merits and issues of introducing higher order optical paths are elucidated. State of the art of the key enabling technologies are demonstrated including hierarchical optical cross-connect switch architectures, hierarchical optical path network design algorithms, a newly developed waveband filter, and waveband conversion technologies.