Paper
6 July 1999 Secure optical telecommunications using chaos in wavelength for signal transmissions
Jean-Pierre Goedgebuer, Laurent Larger, William T. Rhodes
Author Affiliations +
Proceedings Volume 3572, 3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications; (1999) https://doi.org/10.1117/12.358374
Event: 3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications, 1998, Cartagena de Indias, Colombia
Abstract
Severe communications based on chaos have been investigated for some years, especially in the area of radiofrequency transmissions. Signal decoding and decoding is then generally achieved using a RF carrier whose amplitude fluctuates chaotically. Recent advances have also been reported in the field of optical telecommunications. Optical chaos produced by random fluctuations of laser power is then used to encrypt signals. However most of the systems reported so far are plagued by their low flexibility which makes difficult the key to be changed easily. We report experiments in which chaos in wavelength, rather than in power, is advantageously used to encrypt signals. The latter are encrypted as chaotic fluctuations of the wavelength of a tunable semiconductor laser driven by a generator of chaos. Decoding makes use of another generator of chaos operating as a local oscillator synchronized on the first one. The first results are reported in the wavelength range of 1550 nm.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jean-Pierre Goedgebuer, Laurent Larger, and William T. Rhodes "Secure optical telecommunications using chaos in wavelength for signal transmissions", Proc. SPIE 3572, 3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications, (6 July 1999); https://doi.org/10.1117/12.358374
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KEYWORDS
Chaos

Semiconductor lasers

Telecommunications

Receivers

Optical filters

Polarizers

Feedback loops

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