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We demonstrate polarization insensitive FWM-based wavelength conversion of 40Gb/s DPSK signals in a SiGe waveguide, with 0.42-dB polarization-dependent loss. A 1.5-dB Dower nenaltv was measured at a BER of 10−9.
We successfully demonstrate a flat-structured DCN powered by large-port-count fibre-switch-based OCS, PLZT-switch enabled TDM and MEFs supported SDM. The inter-DCN ToR-to-ToR direct optical connections are setup through metro/core networks using all-optical SDM/WDM converters.
This paper reviews a novel approach of implementing space-division multiplexing (SDM) based on Multi-element Fiber (MEF) technology. The MEF geometry provides for ultra-low crosstalk between the spatial channels while full compatibility with standard WDM components is maintained. Passive Ge-doped 3-MEFs have been fabricated and characterized and error free WDM data transfer at an aggregate rate of...
We report the first amplified transmission experiments based on multi-element transmission fibres and amplifiers. The system exhibits negligible levels of crosstalk and compatibility with traditional WDM systems. The technology allows access to individual fibre elements without the need for any special interfacing devices.
We show on-demand multi-wavelength spectrum and space defragmentation in an SDM and elastic network with four programmable nodes and two multi-core fiber links. The combined approach is shown to reduce blocking and hardware requirements in small nodes.
A new scheme for a flexible modulation-, bit rate- independent, reconfigurable and polarization insensitive wavelength converter based on FWM in a highly nonlinear fiber is demonstrated and characterized with 10Gbaud 16 QAM signals.
We experimentally investigate the phase-to-amplitude noise redistribution of a 10Gbit/s BPSK signal in a phase-preserving amplitude regenerator based on optical injection locking and demonstrate its performance in a transmission experiment over an installed fiber link.
A flexible modulation-, bit rate- independent and polarization insensitive wavelength converter based on a highly nonlinear fiber is demonstrated in the middle-point of a field trial transmission experiment.
We present a multi-element fibre (MEF) as a novel candidate for space-division-multiplexing of optical channels that require high density of data transfer. 3-MEFs, comprising three individual fibres in a common coating, have been fabricated and error-free transmission has been demonstrated.
We report the first gridless networking field trial with flexible spectrum switching nodes over 620 km field fibre links. Successful transport, spectrum switching and defragmentation achieved for mixed line signals including 555G and coherent 100G.
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