Design and analysis of strictly nonblocking WDM optical-switching networks

Haitham S. Hamza, Jitender S. Deogun

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Two novel strictly nonblocking crossbar-like WDM networks are proposed and used to design what we believe to be new classes of Clos-type networks. The proposed Clos-type networks are based on two design methods, namely, the wavelength-interconnected and the fiber-interconnected methods. The proposed designs enforce wavelength conversion strictly between two prespecified and fixed wavelengths, thus eliminating the need for expensive wide-range wavelength converters. Analysis of hardware complexity shows that the proposed designs can achieve up to 30% reduction in overall cost compared with best-known WDM switching networks while using a smaller number of stages.

Original languageEnglish (US)
Pages (from-to)322-340
Number of pages19
JournalJournal of Optical Networking
Issue number4
StatePublished - Apr 3 2007

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Computer Science Applications
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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