Synchronization of chaotic injected-laser systems and its application to optical cryptography

Annovazzi-Lodi, V.; Donati, Silvano; Scire, A.

doi:10.1109/3.502371

Cited by 194 publications

(77 citation statements)

References 12 publications

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“…Other methods are suitable for chaos generation and synchronization, for example, a twolaser injection system [11,12]. However, delayed optical feedback is used in virtually all schemes of chaos generation, while direct injection of the master into the slave is preferred for synchronization, since they are by far much easier to implement than other solutions proposed in the literature.…”

Section: Chaos-protected Transmission Schemesmentioning

confidence: 99%

Private Communications Using Optical Chaos

Annovazzi-Lodi¹,

Aromataris²,

Benedetti³

2018

Chaos Theory

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After a brief summary of the basic methods for secure transmission using optical chaos, we report on most recent achievements, namely, on the comparison between the standard two-laser and the three-laser schemes and on the network architecture for multiuser secure transmission. From our investigations, we found that while both the basic twolaser and the three-laser schemes are suitable to secure data exchange, the three-laser scheme offers a better level of privacy due to its symmetrical topology. Moreover, while transmission based on optical chaos is usually restricted to point-to-point interconnections, a more advanced solution, derived from the well-known public key cryptography, allows for private message transmission between any couple of subscribers in a network.

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Section: Chaos-protected Transmission Schemesmentioning

confidence: 99%

Private Communications Using Optical Chaos

Annovazzi-Lodi¹,

Aromataris²,

Benedetti³

2018

Chaos Theory

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“…The subsequent work over the next decade was surveyed in two special parts of IEEE journals, covering laser synchronization and cryptography aspects [3] and covering electronic circuit aspects [4]. Early works on numerical simulations [5][6][7] and experimental demonstration [8,9] of laser chaos communication were reported and a larger scale international demonstration [10,11] and high-speed transmission over Gb/s were studied [12,13]. Comprehensive book-length accounts of laser-based chaos communication have been published [14,15], which develop the area and discuss a wide range of systems and their implementations.…”

Section: Introductionmentioning

confidence: 99%

“…The shift-keying idea has been implemented in a in a variety of communication settings, including laser-based secure communication [7] and laser on-off communications [20]. The non-coherent antipodal version of chaos shift-keying differs from chaos shift-keying as described in the classification (chaos masking, chaos modulation, and chaos shift-keying), introduced in [15].…”

Section: Introductionmentioning

confidence: 99%

Synchronized Laser Chaos Communication: Statistical Investigation of an Experimental System

Lawrance

Papamarkou

Uchida

2017

IEEE J. Quantum Electron.

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Abstract-The paper is concerned with analyzing data from an experimental antipodal laser-based chaos shift-keying communication system. Binary messages are embedded in a chaotically behaving laser wave which is transmitted through a fiber-optic cable and are decoded at the receiver using a second laser synchronized with the emitter laser. Instrumentation in the experimental system makes it particularly interesting to be able to empirically analyze both optical noise and synchronization error as well as bit error rate. Both the noise and error are found to significantly depart in distribution from independent Gaussian. The conclusion from bit error rate results is that the antipodal laser chaos shift-keying system can offer a feasible approach to optical communication. The non-Gaussian optical noise and synchronous error results are a challenge to current theoretical modelling.

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“…In the CMA scheme, the message is not really encoded on the carrier signal but just added to it, while in the CMO scheme [2], [8], the carrier is modulated by the message. On the other hand, the CSK scheme [9] is based on the definition of two clearly separated states for bits "1" and "0," while in the OOSK the system synchronized either to a bit "1" or "0" being unsynchronized for the other bit [10], [11].…”

Section: Introductionmentioning

confidence: 99%

Chaos shift-keying encryption in chaotic external-cavity semiconductor lasers using a single-receiver scheme

Mirasso

Mulet

Masoller

2002

IEEE Photon. Technol. Lett.

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Abstract-In this letter, we numerically show that chaos shiftkeying (CSK) encryption can be achieved by using a single receiver, thus providing a better performance when comparing with the traditional CSK scheme based on two receivers. We analyze the rate equation model for two unidirectionally coupled single-mode external-cavity semiconductor lasers operating in a chaotic regime. The message is encoded in the emitter by slightly varying its injection current. We find that under appropriate conditions, the receiver laser synchronizes to the chaotic emitter, filtering the encoded message and allowing message extraction.

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Synchronization of chaotic injected-laser systems and its application to optical cryptography

Cited by 194 publications

References 12 publications

Private Communications Using Optical Chaos

Private Communications Using Optical Chaos

Synchronized Laser Chaos Communication: Statistical Investigation of an Experimental System

Chaos shift-keying encryption in chaotic external-cavity semiconductor lasers using a single-receiver scheme

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