title: Transverse coupling to the core of a photonic crystal fiber: the photo-inscription of gratings.
abstract: The effect of the microstructure on transversely coupled laser light into the core of a photonic crystal fiber is investigated. Computational two-dimensional modeling and direct experimental measurements indicate that there exist angles and positions of the fiber microstructure, relative to a transversely launched laser beam, that preferentially couple laser light into the fiber core. The implications of these observations on long period and fiber-Bragg grating fabrication in photonic crystal fibers are discussed.
authors: Graham D
authors: GD
authors: Marshall
authors: Dougal J
authors: DJ
authors: Kan
authors: Ara A
authors: AA
authors: Asatryan
authors: Lindsay C
authors: LC
authors: Botten
authors: Michael J
authors: MJ
authors: Withford