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Authors: P. Sanchis, J. Garcia, J. Marti, W. Bogaerts, P. Dumon, D. Taillaert, R. Baets, V. Wiaux, J. Wouters, S. Beckx
Title: Experimental demonstration of high coupling efficiency between wide ridge dielectric waveguides and single-mode photonic crystal waveguides
Format: International Journal
Publication date: 10/2004
Journal/Conference/Book: IEEE Photon. Technol. Lett.
Editor/Publisher: IEEE, 
Volume(Issue): 16(10) p.2272-2274
DOI: 10.1109/lpt.2004.833915
Citations: 9 ( - last update: 14/7/2024)
9 (OpenCitations - last update: 3/5/2024)
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The experimental demonstration of a high efficiency coupling technique based on setting a single defect within a photonic crystal (PhC) taper is reported. The samples were fabricated on a silicon-on-insulator (SOI) substrate and a 3µm wide ridge waveguide was used to couple the light into and out of a single-mode PhC waveguide. Transmission efficiencies higher than 70% for wavelengths at 1.55µm are demonstrated which sharply improves the transmission efficiency achieved with butt-coupling and conventional PhC tapers.

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