All-Optical Wavelength Conversion of a Chaos Masked Signal

Wavelength conversion in the transmission of a message masked by optical chaos is experimentally demonstrated. In our setup, chaos is generated by a distributed-feedback laser subject to delayed optical feedback, and hides a message by additive chaos masking. The optical wavelength is converted, alo...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 19; no. 22; pp. 1783 - 1785
Main Authors Annovazzi-Lodi, V., Aromataris, G., Benedetti, M., Cristiani, I., Merlo, S., Minzioni, P.
Format Journal Article
LanguageEnglish
Published New York IEEE 15.11.2007
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Channels
Chaos
Chaos theory
Chaotic communication
Conversion
cryptography
Distributed feedback devices
frequency conversion
Laser feedback
Masking
Messages
Nonlinear optics
Optical feedback
optical fiber communication
Optical mixing
Optical receivers
optical signal processing
Optical wavelength conversion
Semiconductor optical amplifiers
Stimulated emission
Synchronism
Wavelengths
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Summary:Wavelength conversion in the transmission of a message masked by optical chaos is experimentally demonstrated. In our setup, chaos is generated by a distributed-feedback laser subject to delayed optical feedback, and hides a message by additive chaos masking. The optical wavelength is converted, along the transmission line, by four-wave mixing in a semiconductor optical amplifier. At the receiver, the message is extracted by master-slave synchronization. Our experiments demonstrate that secure communications based on chaos are compatible with channel switching as required in reconfigurable optical networks.
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ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2007.906847