Low loss and broadband hollow-core photonic crystal fibers

Yingying Wang (1) , Frédéric Gérôme (2) , Georges Humbert (2) , Jean-Marc Blondy (2) , Fetah A. Benabid (2)

1 University of Bath [Bath]
2 PHOTONIQUE

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.

Yingying Wang, Frédéric Gérôme, Georges Humbert, Jean-Marc Blondy, Fetah A. Benabid. Low loss and broadband hollow-core photonic crystal fibers. Photonic West, Jan 2011, San franscisco - Californie, United States. ⟨10.1117/12.881559⟩. ⟨hal-00697112⟩