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The transmission of a single fundamental mode in a fiber with cutoff wavelength above the transmission band is studied as a means of allowing a larger fiber effective area and reducing fiber nonlinearity. The reduction of nonlinear impairments is achieved at the expense of a potential new linear impairment in the form of multipath interference (MPI). We use a power-coupled-mode formalism to analyze...
We demonstrate mode-division multiplexed transmission using the LP01 and LP11 modes over three heterogeneous spans of few-mode fiber and investigate the impact of fusion splicing and free-space coupling on mode mixing.
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