Demonstration of a Rectangularly-Arranged Strongly-Coupled Multi-Core Fiber

We present a novel design of strongly-coupled multi-core fibers for MIMO-less transmission. The modal crosstalk between two propagating modes (LP<inf>01</inf>-like and LP<inf>11a</inf>-like) of a fabricated fiber is less than −23 dB/km over the C+L band.

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