Communication using synchronization of optical-feedback-induced chaos in semiconductor lasers

Y. Liu*, H. F. Chen, J. M. Liu, P. Davis, T. Aida

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


A communication system based on the synchronization of optical chaos in semiconductor lasers is proposed. The optical chaos is generated in a single-mode semiconductor laser with external ring optical feedback. Synchronization of chaos is performed by a direct optical-injection scheme that consists of a transmitter laser with an external optical feedback and a receiver laser with optical injection from the transmitter laser. Both numerical and experimental results on synchronization of giga-hertz chaotic signals are presented. Direct encoding of 2.5 Gbps messages on the chaotic waveform is numerically demonstrated. The bit-error rate shows a sensitive dependence on the frequency detuning.

Original languageEnglish
Pages (from-to)1484-1490
Number of pages7
JournalIEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications
Issue number12
StatePublished - Dec 2001


  • Chaos synchronization
  • Injection locking
  • Optical chaos
  • Optical communication
  • Optical feedback


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