We report an effectively single-moded, 1.7km long hollow core Nested Antiresonant Nodeless Fiber (NANF) with record-low 0.28dB/km loss from 1510 to 1600nm, which further reduces the loss gap with standard all-glass single mode fibers.
We report fabrication of a Nested Antiresonant Nodeless hollow-core Fibre (NANF) with a minimum loss of 1.3dB/km at 1450nm and a 65nm bandwidth below 1.5dB/km. The 0.5-km long fibre is effectively single moded and is shown capable of data transmission.
Using hollow-core NANFs with 5-nested-tubes, we achieve the lowest loss ever reported in a hollow core fiber at 1300 and 1625nm (0.22dB/km), and in any type of optical fiber at 850nm (0.6dB/km) and 1060nm (0.3dB/km).
We report the first double-nested antiresonant hollow core fiber. The
fiber matches the loss of commercial solid core fibers in the C-band
(0.174 dB/km) and fundamentally improves it (0.22 dB/km) in the
O-band.
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