The deployment of optical fibers as a transmission medium aroused the problem of speed mismatching between transmission and switching. To build a large IP router with capacity of 1 Tb/s and beyond, either electronic or optical switching can be used. Optical communications with photonic switching are promising to provide high bandwidth and low error probability. The major obstacle in this regard...

We review recent theoretical and experimental efforts toward developing an all-optical switch based on transverse optical patterns. Transverse optical patterns are formed when counterpropagating laser beams interact with a nonlinear medium. A perturbation, in the form of a weak switch beam injected into the nonlinear medium, controls the orientation of the generated patterns. Each state of the ...

We propose and discuss main properties of a new concept an all-optical dielectric two-channel wavelength-selective switch based on the photonic hook effect. A prototype such de-vice microstructures with broken symmetry both geometric shape optical without use micromechanical devices or nonlinear materials is considered. Due to unique property change its curvature depending wavelength illuminati...

We achieved first dynamic all-optical signal processing with a bandgap-engineered MZI SOA all-optical switch. The wide-gap Selective Area Growth (SAG) technique was used to provide multi-bandgap materials with a single step epitaxy. The maximum photoluminescence (PL) peak shift obtained between the active region and the passive region was 192 nm. The static current switching with the fabricated...