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Fabrication and non-destructive characterization of tapered single-ring hollow-core photonic crystal fiber

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Pennetta,  Riccardo
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

Enders,  Michael T.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Frosz,  Michael H.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;
Fibre Fabrication and Glass Studio, Technology Development and Service Units, Max Planck Institute for the Science of Light, Max Planck Society;

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Tani,  Francesco
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Russell,  Philip St. J.
Russell Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Pennetta, R., Enders, M. T., Frosz, M. H., Tani, F., & Russell, P. S. J. (2019). Fabrication and non-destructive characterization of tapered single-ring hollow-core photonic crystal fiber. APL Photonics, 4: 056105, pp. 1-6. doi:10.1063/1.5093474.


Cite as: https://hdl.handle.net/21.11116/0000-0003-AC8B-F
Abstract
We report on the properties of tapered single-ring hollow-core photonic-crystal fibers, with a particular emphasis on applications in nonlinear optics. The simplicity of these structures allows the use of non-invasive side-illumination to assess the quality of the tapering process, by
observing the scattered far-field spectrum originating from excitation of whispering-gallery modes in the cladding capillaries. We investigate the conditions that ensure adiabatic propagation in the up- and down-tapers, and the scaling of loss-bands (created by anti-crossings between the core mode and modes in the capillary walls) with taper ratio. We also present an analytical model for the pressure profile along a tapered hollow fiber under differential pumping