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An ultrafast all-optical simultaneous wavelength and mode conversion scheme is purposed based on intermodal nonlinear wave mixing, with the capability of switching state of polarization and mode degeneracy orientation in few-mode fibers with high efficiency.
Analogous to single-mode fiber, nonlinear effects may eventually limit the information capacity in next generation long-haul few-mode fiber (FMF) transmission systems. In this paper, we theoretically and numerically investigate inter-modal four-wave mixing (IM-FWM) among up to four spatial modes in FMFs. Different forms of multi-mode non-linear Schrödinger equation (MM-NLSE) for two, three and four...
In this paper, we propose a solution to resolve link blockage problem in 60 GHz WPANs. Line-of-Sight (LOS) link is easily blocked by a moving person, which is concerned as one of the severe problems in 60 GHz systems. Beamforming is a feasible technique to resolve link blockage by switching the beam path from LOS link to a Non-LOS (NLOS) link. We propose and evaluate two kinds of Beam Switching (BS)...
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