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Light propagation in higher-order modes of fibers yields a promising schematic for arbitrarily increasing modal areas. We demonstrate this with modes of record Aeff ranging from 2100 to 3100 mum2, which experience negligible loss or mode coupling.
We demonstrate a higher-order-mode fiber-based platform, to achieve low-loss, bend-resistant, mode-coupling-free light transmission over meter-length fibers, in a record Aeff of 2100 mum2. Its nonlinearity tolerance is demonstrated by compressing fiber-laser pulses to 64 fs, yielding 52-kW peak powers
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