Abstract
A chaos-based communication scheme allowing for multiaccess message transmission is proposed. In this scheme, two mutually coupled semiconductor lasers (MCSLs) are identically driven by an external cavity semiconductor laser (ECSL). The MCSLs isochronally synchronize with each other through symmetric operation, and they laggardly synchronize to the ECSL through injection-locking. When external modulation is adopted, strong chaos pass filtering effects that are not restricted by the relaxation oscillation frequencies of the MCSLs are observed, which enables us to achieve high bit-rate multiaccess chaos communication. Moreover, the security can be improved by making use of the multiaccess ability. This scheme can be used as a rudiment of chaos communication networks.
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