Journal
OPTICS EXPRESS
Volume 21, Issue 12, Pages 14036-14046Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.21.014036
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Funding
- European Research Council (ERC FP7) [279770]
- European Union's Seventh Framework Programme (CIG FP7) [293767]
- European Research Council (ERC) [279770] Funding Source: European Research Council (ERC)
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Silicon nitride is demonstrated as a high performance and cost-effective solution for dense integrated photonic circuits in the visible spectrum. Experimental results for nanophotonic waveguides fabricated in a standard CMOS pilot line with losses below 0.71dB/cm in an aqueous environment and 0.51dB/cm with silicon dioxide cladding are reported. Design and characterization of waveguide bends, grating couplers and multimode interference couplers (MMI) at a wavelength of 660 nm are presented. The index contrast of this technology enables high integration densities with insertion losses below 0.05 dB per 90 degrees bend for radii as small as 35 mu m. By a proper design of the buried oxide layer thickness, grating couplers with efficiencies above 38% for the TE polarization have been obtained. (C) 2013 Optical Society of America
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