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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Veröffentlicht in:IEEE photonics journal 2011-04, Vol.3 (2), p.203-208
Hauptverfasser: Scullion, M G, Krauss, T F, Di Falco, A
Format: Artikel
Sprache:eng
Schlagworte:
Couplers
coupling
Couplings
Dispersion
Geometry
Indexes
Optical waveguides
Photonic crystals
Slotted photonic crystals
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Zusammenfassung: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