1 March 2011 Low loss and broadband hollow-core photonic crystal fibers
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We report on recent developments on fabrication and optical guidance of Kagome-lattice hollow-core photonic crystal fiber (HC-PCF). These include the design and fabrication of a hypocycloid-shaped core Kagome HC-PCF that combines a record optical attenuation with a baseline exhibiting ~180 dB/km over a transmission bandwidth larger than 200 THz. These results are corroborated with theoretical simulations which show that both the core-shape and the cladding ring number play role in inhibited coupling, inducing core-mode confinement for the fundamental transmission band. We also show that the inhibited coupling is weaker for the first higher-order transmission band by theoretically and experimentally comparing Kagome HC-PCF with a single anti-resonant ring hollow-core fiber.
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Y. Y. Wang, Y. Y. Wang, F. Gerome, F. Gerome, G. Humbert, G. Humbert, J. M. Blondy, J. M. Blondy, F. Benabid, F. Benabid, } "Low loss and broadband hollow-core photonic crystal fibers", Proc. SPIE 7946, Photonic and Phononic Properties of Engineered Nanostructures, 79460X (1 March 2011); doi: 10.1117/12.881559; https://doi.org/10.1117/12.881559

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