Title :
High Efficiency Interface for Coupling Into Slotted Photonic Crystal Waveguides
Author :
Scullion, M.G. ; Krauss, T.F. ; Di Falco, A.
Author_Institution :
Sch. of Phys. & Astron., Univ. of St. Andrews, St. Andrews, UK
fDate :
4/1/2011 12:00:00 AM
Abstract :
We investigate the mechanism of coupling light into slotted photonic crystal waveguides. We identify two alternative approaches for improving the coupling efficiency, based on engineered mode dispersion and on resonant mechanisms. For the optimized geometry, we calculate a loss figure of 0.3 dB over 100-nm bandwidth per interface and demonstrate a corresponding experimental value of 1.5 dB over 78-nm bandwidth per interface.
Keywords :
integrated optics; optical couplers; optical dispersion; optical losses; optical resonators; optical waveguides; photonic crystals; coupling interface; engineered mode dispersion; loss figure; resonant mechanisms; slotted photonic crystal waveguides; Couplers; Couplings; Dispersion; Geometry; Indexes; Optical waveguides; Photonic crystals; Slotted photonic crystals; coupling; photonic crystals;
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2011.2125785
