7 September 2003 Optoelectronic devices for optical chaos communications
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Abstract
Optical chaos communications is becoming a hot topic since it is considered as a possible way to improve privacy and security in information transmission. To this end, a message can be encoded within a chaotic carrier generated by an emitter operating in a non-linear regime and decoded by an appropriate receiver. Consequently, the design and implementation of emitters and receivers that operate in a chaotic regime is a very important issue. To this end, two different architectures have been mainly followed: semiconductor lasers subject to all optical feedback and semiconductor lasers subject to electro-optical feedback. In the former, chaos is obtained from the light re-injected into the device that induces the laser to operate in a nonlinear regime. In the latter, the laser acts as a linear device that transforms a chaotic electrical input, generated in a combined electro-optical loop, into chaotic light. Encrypted information within the chaotic carrier can be recovered at a receiver that has to synchronize and match with the emitter. In this talk, both approaches to design the optoelectronic devices will be reviewed.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Claudio R. Mirasso, Ingo Fischer, Michael Peil, and Laurent Larger "Optoelectronic devices for optical chaos communications", Proc. SPIE 5248, Semiconductor Optoelectronic Devices for Lightwave Communication, (7 September 2003); doi: 10.1117/12.514423; https://doi.org/10.1117/12.514423
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