High Efficiency Interface for Coupling Into Slotted Photonic Crystal Waveguides

High Efficiency Interface for Coupling Into Slotted Photonic Crystal Waveguides

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...

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Bibliographic Details
Published in:IEEE photonics journal Vol. 3; no. 2; pp. 203 - 208
Main Authors: Scullion, M G, Krauss, T F, Di Falco, A
Format: Journal Article
Language:English
Published: IEEE 01-04-2011
Subjects:
Couplers
coupling
Couplings
Dispersion
Geometry
Indexes
Optical waveguides
Photonic crystals
Slotted photonic crystals
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Description
Summary: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.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2011.2125785