Compact and broadband design of an 850 nm 2 × 2 3-dB directional coupler with a shallowly etched SWG gap.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
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
Ultra-compact multimode waveguide bend with shallowly etched grooves.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.440634
Abstract: In this work, an ultra-sharp multimode waveguide bend (MWB) based on gradient shallowly etched grooves is proposed and demonstrated. With a bending radius of only 5.6 μm, our shallowly-etched-groove multimode waveguide bend (SMWB) can enable… read more here.
Keywords: waveguide bend; etched grooves; shallowly etched; multimode waveguide ... See more keywords