Stable oscillating nonlinear beams in square-wave-biased-photorefractives

We demonstrate experimentally that in a centrosymmetric paraelectric non-stationary boundary conditions can dynamically halt the intrinsic instability of quasi-steady-state photorefractive self-trapping, driving beam evolution into a stable oscillating two-soliton-state configuration.Comment: 3 pages, 4 figs, revtex os

Optical TransmissionThe FP7 BONE Project Experience /

XX, 284 p.online resource

Opportunities for low cost processing of erbium 8-quinolinolates for active integrated photonic applications

Erbium-doped organic emitters are promising active materials for Photonic Integrated Circuits (PICs) due to their emission shown at 1550 nm combined to the potential low cost processing. In particular, Erbium Quinoline (ErQ) gained a strong interest in the last decade for the good emission efficiency. This contribution reports the results derived from the application of ErQ as active core material within a buried optical waveguide, following the development of a purposed optical process to control the refractive index of ErQ and then to define a patterned structure from a single thin film deposition step. The reported results show the potential of Er-doped organic materials for low cost processing and application to planar PICs

Single and multi-channel 2R regeneration: an overview

Transparent All-Optical Regeneration and Wavelength Conversion in Dense Wavelength Division Multiplexing (DWDM) transmission systems are key issues to ensure the progress of the transparent networks and their actual implementation. In this paper recent progress of several All Optical 2R experimental systems focused on single and Multi-channel approaches will be reported. In particular will be analysed the implementation matters and the regeneration capabilities of several devices based on the exploitation of non-linear phenomena in several media: Semiconductor Optical Amplifier (SOA) and Optical Fibres in non linear regimes