Title :
Low refractive-index-contrast Fresnel-microstructure fibre for coupling between SMF and photonic crystals
Author :
Hisatomi, Makiko ; Parker, Michael C. ; Walker, Stuart D.
Author_Institution :
Fujitsu Labs. of Eur., Ipswich, UK
Abstract :
A method is described to efficiently couple light between single-mode fibre (SMF) and photonic crystals (PhCs) using a novel Fresnel-zone (FZ) MSF lens. In this study, the proposed FZ-MSF lens focuses light in a similar way to a graded-index (GRIN) rod lens, but instead of having a continuous parabolic refractive index variation, the MSF employs longitudinal FZs to focus light from SMF down to PhC dimensions, and vice-versa. Details on the equations describing the trajectory of a light ray in a medium with spatially-varying refractive index is also discussed.
Keywords :
gradient index optics; integrated optics; lenses; micro-optics; optical fibre couplers; optical focusing; photonic crystals; refractive index; Fresnel-microstructure fibre; Fresnel-zone MSF lens; SMF; focusing; graded-index rod lens; light coupling; light ray trajectories; low refractive-index-contrast; photonic crystals; single-mode fibre; Coupling circuits; Differential equations; Europe; Laboratories; Lenses; Optical refraction; Photonic crystal fibers; Photonic crystals; Reflection; Systems engineering and theory;
Conference_Titel :
Holey Fibers and Photonic Crystals/Polarization Mode Dispersion/Photonics Time/Frequency Measurement and Control, 2003 Digest of the LEOS Summer Topical Meetings
Conference_Location :
Vancouver, BC, Canada
Print_ISBN :
0-7803-7982-9
DOI :
10.1109/LEOSST.2003.1224267
