Lightpath concentrators for all-optical networks

Yiu Wing Leung*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

7 Citations (Scopus)


In some deployments of all-optical networks, it is necessary to concentrate the lightpaths from some fibers to fewer fibers. An N × M lightpath concentrator is an optical component for this purpose, and it concentrates the lightpaths from N incoming fibers to M outgoing fibers. In this paper, three designs of N × M lightpath concentrators are proposed. The first design is a generalization of optical crossconnects, and it requires M × M optical switches. The second design incorporates the concept of partial concentration so that it requires only m × m optical switches (where m < M) at the expense of a larger blocking probability. The switch size m can be selected to make a tradeoff between cost and performance. In the third design, it is assumed that small lightpath concentrators are available, and these concentrators are used as building blocks to construct large lightpath concentration networks.

Original languageEnglish
Pages (from-to)3259-3267
Number of pages9
JournalJournal of Lightwave Technology
Issue number9
Publication statusPublished - Sept 2006

Scopus Subject Areas

  • Atomic and Molecular Physics, and Optics

User-Defined Keywords

  • All-optical networks
  • Concentration
  • Concentrator
  • Lightpath


Dive into the research topics of 'Lightpath concentrators for all-optical networks'. Together they form a unique fingerprint.

Cite this