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Journal Article

Excitation of higher-order modes in optofluidic photonic crystal fiber

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

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oe-26-23-30245.pdf
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Citation

Ruskuc, A., Koehler, P., Weber, M. A., Andres-Arroyo, A., Frosz, M. H., Russell, P. S. J., et al. (2018). Excitation of higher-order modes in optofluidic photonic crystal fiber. Optics Express, 26(23), 30245-30254. doi:10.1364/OE.26.030245.


Cite as: https://hdl.handle.net/21.11116/0000-0000-C70B-4
Abstract
Higher-order modes up to LP33 are controllably excited in water-filled kagomé- and bandgap-style hollow-core photonic crystal fibers (HC-PCF). A spatial light modulator is used to create amplitude and phase distributions that closely match those of the fiber modes, resulting in typical launch efficiencies of 10–20% into the liquid-filled core. Modes, excited across the visible wavelength range, closely resemble those observed in air-filled kagomé HC-PCF and match numerical simulations. Mode indices are obtained by launching plane-waves at specific angles onto the fiber input-face and comparing the resulting intensity pattern to that of a particular mode. These results provide a framework for spatially-resolved sensing in HC-PCF microreactors and fiber-based optical manipulation.