Journal
OPTICS EXPRESS
Volume 23, Issue 3, Pages 3795-3806Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.23.003795
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Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Silicon Electronic-Photonic Integrated Circuits (SiEPIC) Program
- China Scholarship Council (CSC)
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We design and demonstrate broadband directional couplers that use asymmetric-waveguide based phase control sections, on the silicon-on-insulator platform. Broadband directional couplers with various power splitting ratios, including 10%/90%, 20%/80%, 30%/70%, 40%/60% and 50%/50%, were realized for both transverse electric (TE) and transverse magnetic (TM) modes. Some of the devices exhitbit bandwidths in excess of 100 nm, and all in excess of 75 nm. The footprints of the TE mode couplers are 32 mu m x 1.3 mu m, or less, and those of the TM mode couplers are 13 mu m x 1.3 mu m, or less. (c) 2015 Optical Society of America
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