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We demonstrate combined wavelength- and mode-multiplexed transmission with a spectral efficiency of 58 b/s/Hz over an 87-km single-span multi-mode fiber using 16-QAM modulation format. The hybrid fiber span comprises 10- and 15-mode fibers.
We demonstrate the transmission of 12 spatial and polarization modes multiplexed on 255 optical channels in ultra-dense WDM using OFDM across the full C-band over 74.17 km 6-mode fiber. An aggregate bit rate of 41.6 Tbit/s is achieved.
We experimentally demonstrate simultaneous transmission of three spatially multiplexed 56-Gb/s polarization-division-multiplex quadrature phase-shift keying (PDM-QPSK) channels over 24 km of a strongly coupled three-core fiber. The resulting crosstalk of about is almost completely removed by coherent multiple-input multiple-output (MIMO) processing.
This study investigates optical micromachines, which are positioned as an enabling technology for the next generation of optical line systems. This work also discusses the MEMS-based optical crossconnect as a scalable platform that enables the next generation of mesh-based network architectures
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