Synchronization and communication using semiconductor lasers with optoelectronic feedback

TitleSynchronization and communication using semiconductor lasers with optoelectronic feedback
Publication TypeJournal Article
Year of Publication2001
AuthorsAbarbanel, H. D. I., M. B. Kennel, L. Illing, S. Tang, H. F. Chen, and J. M. Liu
JournalQuantum Electronics, IEEE Journal of
Pagination1301 -1311
Date Publishedoct.
Keywordsarbitrary amplitude of modulation, bit-error rate, broadband chaotic intensity oscillations, chaotic waveforms, communication, coupling strength, dynamical dimension, feedback loop time delay, laser feedback, laser noise, laser parameter mismatch, open-loop receiver configuration, optical channel noise, optical chaos, optical receivers, optical transmitters, optoelectronic feedback, optoelectronic feedback delay mismatch, receiver feedback loop, Semiconductor lasers, synchronisation, synchronization, transmitter feedback loop

Semiconductor lasers provide an excellent opportunity for communication using chaotic waveforms. We discuss the characteristics and the synchronization of two semiconductor lasers with optoelectronic feedback. The systems exhibit broadband chaotic intensity oscillations whose dynamical dimension generally increases with the time delay in the feedback loop. We explore the robustness of this synchronization with parameter mismatch in the lasers, with mismatch in the optoelectronic feedback delay, and with the strength of the coupling between the systems. Synchronization is robust to mismatches between the intrinsic parameters of the lasers, but it is sensitive to mismatches of the time delay in the transmitter and receiver feedback loops. An open-loop receiver configuration is suggested, eliminating feedback delay mismatch issues. Communication strategies for arbitrary amplitude of modulation onto the chaotic signals are discussed, and the bit-error rate for one such scheme is evaluated as a function of noise in the optical channel


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