Chaos-based communications using semiconductor lasers

Abstract

We report in this paper on the features of standard two-laser scheme in comparison with three-laser setup appropriate for chaos based communications. From our investigations, we learned that both, the two-laser and the three-laser systems are suitable to secure data exchange. However, the three-laser setup offers a better level of privacy because of its symmetry. We found out that three-laser setup has some specific advantages over the two-laser scheme in terms of digital security and privacy, however we mention that, due to its complexity, it is more difficult to implement.