Demonstration and analysis of asynchronous and survivable optical CDMA ring networks

Yanhua Deng, Zhenxing Wang, Konstantin Kravtsov, John Chang, Carolyn Hartzell, Mable P. Fok, Paul R. Prucnal

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


We propose an incoherent optical code-division multiple access (CDMA) ring network configured such that each node in the network includes all-optical add/drop multiplexers to provide truly asynchronous operation and a self-healing protection monitoring circuit to ensure service availability during link failure. We also analyze the performance of such a network considering the presence of multiple-access interference and noise from incomplete dropping of the desired data and accidental dropping of the undesired data. Furthermore, we experimentally demonstrate the proposed design with a two-node system operating at 2.5 Gbits/s. Error-free transmission is obtained and a 5.3 dB power penalty at a bit error rate of 10-9 is measured for the worst connection configuration. The complete optical CDMA ring network is successfully demonstrated in truly asynchronous operation.

Original languageEnglish (US)
Article number5438350
Pages (from-to)159-165
Number of pages7
JournalJournal of Optical Communications and Networking
Issue number4
StatePublished - Apr 2010

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications


  • Add/drop multiplexer
  • Asynchronous network
  • Nonlinear optical loop mirror
  • Optical code-division multiple access
  • Ring network


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