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We demonstrate tuning of the output spectrum of an HOM fiber module by changing the dispersion curve. Spectral feature wavelengths can be changed systematically by changing the location of the zero-dispersion wavelength.
FTTH applications require advanced fibers insensitive to stapling and tight bends. We demonstrate resonance-assisted fibers made with standard solid-fiber fabrication, achieving <0.1dB/turn loss down to 3mm fiber bend radius and compatibility with standard SMF.
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.
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