Chaotic signals have been proposed as broadband information carriers with the potential of providing a high level of robustness and privacy in data transmission. Laboratory demonstrations of chaos-based optical communications have already shown the potential of this technology, but a field experiment using commercial optical networks has not been undertaken… (More)
Coherent optical OFDM (CO-OFDM) has recently been proposed and the proof-of-concept transmission experiments have shown its extreme robustness against chromatic dispersion and polarization mode dispersion. In this paper, we first review the theoretical fundamentals for CO-OFDM and its channel model in a 2x2 MIMO-OFDM representation. We then present various… (More)
A theoretical analysis has been undertaken of the steady state transverse mode selection in Vertical Cavity Surface Emitting Lasers (VCSELs) subject to optical feedback in an external cavity connguration. Proper account is taken of multiple re-ections in the external cavity. The innuence of thermal eeects on the mode selection is also treated and noise… (More)
We investigate the generalized synchronization between two unidirectionally linearly and nonlinearly coupled chaotic nonidentical Ikeda models and find existence conditions of the generalized synchronization. Also we study the chaos synchronization between nonidentical Ikeda models with variable feedback-delay times and find the existence and sufficient… (More)
Best practices in public reporting no. 3: how to maximize public awareness and use of comparative quality reports through effective promotion and dissemination strategies. Rockville, We consider our Learning Network tools to be works in progress and always welcome your comments. Please forward suggestions to Peggy McNamara at firstname.lastname@example.org.
Calculations are reported of the eeect of birefringence on the selection of polarization states for the case of a weakly index guided Vertical-Cavity Surface Emitting Laser supporting both a fundamental and a higher-order transverse mode. The innuence of the refraction index step of the waveguide on the polarization behaviour of the laser is elucidated. It… (More)
We consider our Learning Network tools to be works in progress and always welcome your comments. Please forward suggestions to Peggy McNamara at email@example.com.
Cavity-loss control of surface emitting distributed Bragg reflector lasers by electro-optic modulation of the Bragg mirror reflectivity is shown to be more efficient at high frequencies than the conventional control by current modulation. Combining both means of control offers additional possibilities, such as the elimination of relaxation oscillations and… (More)