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We demonstrate two in-line cladding-pumped 6-core Erbium-doped fiber amplifiers with recirculation loop transmission over 465-km coupled-6-core fiber. Total capacity of 7.2-Tb/s SDM/WDM transmission is achieved with a spectral efficiency of 18-bit/s/Hz.
We experimentally evaluate the time-varying crosstalk frequency response of a multicore fiber. Our findings suggest that dynamically adaptive transmission would be able to exploit this behavior, to improve the performance of crosstalk-limited links.
A 125-µm-cladding 8-core fiber applicable to short-reach transmissions and compatible with conventional components is proposed. An ultra-high-density 12-MCF cable was fabricated with the proposed MCF, and error-free 8-SDM×4-WDM×25-Gb/s (800-Gb/s/fiber) transmission was demonstrated in O-band.
Pure-silica-core fiber with ring-core profile is designed to have the larger ratio of Aeff to MFD than with step-core, and realized Aeff of 135μm2 and transmission loss of 0.160dB/km with improved splicing loss onto SSMF.
Flexible conversion from an arbitrary wavelength to desired wavelength in whole C-band is studied and demonstrated within 1.7 dB efficiency variation among all conversion pairs using HNLF having dispersion slope of +0.02 ps/nm2/km and ?? of 30/W/km.
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