Compact and broadband design of an 850 nm 2 × 2 3-dB directional coupler with a shallowly etched SWG gap.
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DOI: 10.1364/ao.471114
Abstract: A compact and broadband 2×2 3 dB directional coupler (DC) is designed at the 850 nm wavelength region based on the silicon nitride platform. The proposed DC is equipped with a shallowly etched subwavelength gratings (SWG) gap… read more here.
Keywords: swg gap; region; directional coupler; compact broadband ... See more keywords