Ultralow transmission loss in inhibited-coupling guiding hollow fibers
By Benoît Debord, A. Amsanpally, M. Chafer, A. Baz, M. Maurel, J. Blondy, E. Hugonnot, F. Scol, Luca Vincetti, Frédéric Gérôme and 1 more. 2017
260 citations recorded by the source corpus.
Attenuation in photonic bandgap guiding hollow-core photonic crystal fiber (HC-PCF) has not beaten the fundamental silica Rayleigh scattering limit (SRSL) of conventional step-index fibers due to strong core-cladding optical overlap, surface roughness at the silica cladding struts, and the presence of interface modes. Hope has been revived recently by the introduction of hypocycloid core contour (i.e., negative curvature) in inhibited-coupling guiding HC-PCF. We report on several fibers with a hypocycloid core contour and a cladding structure made of a single ring from a tubular amorphous lattice, including one with a record transmission loss of 7.7 dB/km at ∼750 nm (only a factor ∼2 above the SRSL) and a second with an ultrabroad fundamental band with loss in the range of 10–20 dB/km, spanning from 600 to 1200 nm. The reduction in confinement loss makes these fibers serious contenders for light transmission below the SRSL in the UV–VIS–NIR spectral range and could find application in high-energy pulse laser beam delivery or gas-based coherent and nonlinear optics.
Subfields: Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/4c2faf82a3c21442fdfc8819e6e295e3acd20d11
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In Atomic and Molecular Physics, and Optics
In Electrical and Electronic Engineering
Citations in the corpus
- Negative curvature fibers (2017, background): “Inhibited coupling means that leakage of the core mode into the cladding is suppressed by a strong reduction in the coupling between the core mode and the cladding modes [36,56].”
- Hollow-Core Fiber Technology: The Rising of “Gas Photonics” (2019, unknown): “7 dB/km at around 750 nm [30], and more recently, a modified tubular HCPCF is reported to show 2 dB/km transmission loss at the vicinity of 1500 nm [58].”
- Hybrid photonic-crystal fiber (2017, background): “…windows in broadband-guiding HC-PCFs when compared to HC-PBGs, along with propagation losses approaching that of HC-PBG— currently at 7.7 dB/km (Debord et al., 2017; Roberts et al., 2005; Wang et al., 2011)—and low chromatic dispersion, have made them ideal vessels for high-field ultrafast…”