Experimental demonstration of coupling to silicon photonic wires using a grating coupler formed by subwavelength structures

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TypeArticle
ConferenceEuropean Optical Society Annual Meeting 2010, October 26-29, 2010, Paris, France
AbstractWe present experimental results on a novel fiber-chip grating coupler for silicon photonic wire waveguides. By using subwavelength grating structures, which act as an averaged effective medium inside the grooves of the diffraction grating, the grating strength can be varied continuously to optimize the mode overlap of the diffracted beam with the fiber mode. Grating couplers and photonic wire waveguides are fabricated in a single etch step. We have measured maximum fiber-to-photonic wire coupling efficiencies of approximately 40% for the transverse magnetic (TM) mode.
Publication date
LanguageEnglish
AffiliationNRC Institute for Microstructural Sciences; NRC Genomics and Health Initiative; National Research Council Canada
Peer reviewedYes
NPARC number17708091
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Record identifier5d3aee00-36b4-4c33-a186-34b95e9e997e
Record created2011-04-08
Record modified2016-05-09
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