From Event: SPIE Optical Engineering + Applications, 2018
Higher-order modes are controllably excited in water-filled kagomè-, bandgap-style, and simplified 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 kagomè HC-PCF and match numerical simulations. These results provide a framework for spatially-resolved sensing in HC-PCF microreactors and fiber-based optical manipulation.
Philipp Köhler, Andrei Ruskuc, Marius A. Weber, Michael H. Frosz, Ana Andres-Arroyo, Philip St. J. Russell, and Tijmen G. Euser, "Excitation of higher-order modes in optofluidic hollow-core photonic crystal fiber," Proc. SPIE 10744, Laser Beam Shaping XVIII, 107440N (Presented at SPIE Optical Engineering + Applications: August 21, 2018; Published: 14 September 2018); https://doi.org/10.1117/12.2320594.
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