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Excitation of higher-order modes in optofluidic photonic crystal fiber.

Published version
Peer-reviewed

Type

Article

Change log

Authors

Ruskuc, Andrei 
Koehler, Philipp 
Weber, Marius A 
Andres-Arroyo, Ana 
Frosz, Michael H 

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.

Description

Keywords

physics.optics, physics.optics

Journal Title

Opt Express

Conference Name

Journal ISSN

1094-4087
1094-4087

Volume Title

26

Publisher

The Optical Society
Sponsorship
Engineering and Physical Sciences Research Council (EP/L015978/1)
T.G.E. acknowledges the support from the Winton Programme for the Physics of Sustainability and the Isaac Newton Trust. P.K. acknowledges the Cambridge NanoDTC (EPSRC Grant EP/L015978/1).