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Photonic crystal fiber with a hybrid honeycomb cladding

N. A. Mortensen·M. D. Nielsen·J. R. Folkenberg·C. Jakobsen·H. R. Simonsen
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Abstract

We consider an air-silica honeycomb lattice and demonstrate a new approach to the formation of a core defect. Typically, a high or low-index core is formed by adding a high-index region or an additional air-hole (or other low-index material) to the lattice, but here we discuss how a core defect can be formed by manipulating the cladding region rather than the core region itself. Germanium-doping of the honeycomb lattice has recently been suggested for the formation of a photonic band-gap guiding silica-core and here we experimentally demonstrate how an index-guiding silica-core can be formed by fluorine-doping of the honeycomb lattice.

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N. A. Mortensen, M. D. Nielsen, J. R. Folkenberg, C. Jakobsen, H. R. Simonsen. 2004-01-29. Photonic crystal fiber with a hybrid honeycomb cladding. https://doi.org/10.1364/opex.12.000468

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