Wheeler, N.V., Bradley, T.D., Hayes, J.R., Gouveia, M.A., Liang, S., Chen, Y., Sandoghchi, S.R., Abokhamis Mousavi, Seyed Mohammad, Poletti, F., Petrovich, M.N. and Richardson, D.J. (2017) Low-loss Kagome hollow-core fibers operating from the near- to the mid-IR. Optics Letters, 42 (13), 2571-2574. (doi:10.1364/OL.42.002571).
Abstract
We report the fabrication and characterization of Kagome hollow-core antiresonant fibers, which combine low attenuation (as measured at ∼30 cm bend diameter) with a wide operating bandwidth and high modal purity. Record low attenuation values are reported: 12.3 dB/km, 13.9 dB/km, and 9.6 dB/km in three different fibers optimized for operation at 1 μm, 1.55 μm, and 2.5 μm, respectively. These fibers are excellent candidates for ultra-high power delivery at key laser wavelengths including 1.064 μm and 2.94 μm, as well as for applications in gas-based sensing and nonlinear optics.
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