Marc Sciamanna

TL;DR: The fundamental physics underpinning laser diode chaos and the opportunities for harnessing it for potential applications are discussed in this paper, where the availability and ease of operation of laser diodes, in a wide range of configurations, make them a convenient testbed for exploring basic aspects of nonlinear and chaotic dynamics.

TL;DR: In this article, the identification of a critical security parameter, the external-cavity round-trip time (the time delay in the laser dynamics), is performed using both the auto-correlation function and delayed mutual information methods applied to the chaotic time-series.

TL;DR: It is investigated theoretically the possibility of retrieving the value of the time delay of a semiconductor laser with an external optical feedback from the analysis of its intensity time series, thus improving the security of chaos-based communications using external-cavity lasers.

TL;DR: In this paper, the polarization of the output from a vertical-cavity surface emitting laser without the need for any external stimulus or feedback has been observed, and the origin is nonlinear coupling between two elliptically polarized modes within the device.

TL;DR: Vertical-cavity surface-emitting lasers subjected to weak polarization-insensitive optical feedback are studied experimentally and theoretically and it is found that the feedback induces random anticorrelated hopping between the two orthogonal linearly polarized modes.