Fabrication tolerance analysis of grating couplers between optical fibers and silicon waveguide
Sign Up to like & getrecommendations! Published in 2020 at "Optik"
DOI: 10.1016/j.ijleo.2019.163490
Abstract: Abstract The grating structure and its performance for coupling between fiber and silicon-based waveguide are studied and analyzed. The coupling mechanism is illustrated through the grating Bragg diffraction condition, and the effect of physical parameters… read more here.
Keywords: tolerance analysis; grating couplers; fabrication tolerance; grating coupler ... See more keywords
Performance Evaluation of Backside Emitting O-Band Grating Couplers for 100-$\mu$m-Thick Silicon Photonics Interposers
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2019.2918522
Abstract: Most of the single-mode fiber-coupled grating couplers reported in the literature have been designed for upward directionality to perform wafer-scale testing of photonic-integrated circuits. A coupler designed for downward directionality can help in achieving a… read more here.
Keywords: tex math; grating couplers; inline formula; chip ... See more keywords
Terahertz Quantum Well Photodetectors With Metal-Grating Couplers
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Journal of Selected Topics in Quantum Electronics"
DOI: 10.1109/jstqe.2016.2608618
Abstract: In this paper, terahertz (THz) quantum well photodetectors (QWPs) with metal-grating couplers are presented for normal-incident operation. Both one-dimensional and two-dimensional grating samples were fabricated. The photocurrent spectra and the peak responsivity were characterized. The… read more here.
Keywords: metal grating; photodetectors metal; grating couplers; terahertz quantum ... See more keywords
Optimized Si_3N_4 grating couplers for relaxed alignment requirements under flood illumination
Sign Up to like & getrecommendations! Published in 2017 at "Applied Optics"
DOI: 10.1364/ao.56.001286
Abstract: Grating couplers are essential building blocks to integrated photonic circuits, as they allow surface access to the photonic chip. They are most commonly used in combination with an optical fiber, requiring precise alignment, resulting in… read more here.
Keywords: relaxed alignment; grating couplers; optimized grating; flood illumination ... See more keywords
Compact microring resonators integrated with grating couplers working at 2 μm wavelength on silicon-on-insulator platform.
Sign Up to like & getrecommendations! Published in 2017 at "Applied optics"
DOI: 10.1364/ao.56.005444
Abstract: Compact all-pass and add-drop microring resonators (radius=10 μm) integrated with grating couplers working at 2 μm wavelength are designed, fabricated, and characterized on a commercial 340-nm-thick-top-silicon silicon-on-insulator platform. They are suitable for high-volume integrated optical circuits… read more here.
Keywords: integrated grating; grating couplers; silicon; couplers working ... See more keywords
Compact, ultra-broadband plasmonic grating couplers.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.029719
Abstract: We demonstrate all-metallic grating couplers that enable vertical, compact and broadband fiber-coupling. The grating couplers are based on a metal layer and directly convert a vertical fiber mode into surface plasmon polaritons (SPPs). In combination… read more here.
Keywords: compact ultra; broadband plasmonic; grating couplers; ultra broadband ... See more keywords
Multi-layer inverse design of vertical grating couplers for high-density, commercial foundry interconnects.
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DOI: 10.1364/oe.466015
Abstract: Density-based topology optimization is used to design large-scale, multi-layer grating couplers that comply with commercial foundry fabrication constraints while simultaneously providing beam profiles that efficiently couple to a single-mode optical fiber without additional optics. Specifically,… read more here.
Keywords: multi layer; density; optics; design ... See more keywords
Compact focusing grating couplers for silicon horizontal slot waveguides.
Sign Up to like & getrecommendations! Published in 2017 at "Optics letters"
DOI: 10.1364/ol.42.000490
Abstract: In this Letter, we present the design, simulation (2D and 3D), fabrication, and experimental characterization of compact and fully etched focusing gratings for a horizontal slot waveguide based on a silicon nitride layer sandwiched between… read more here.
Keywords: horizontal slot; slot; grating couplers; compact focusing ... See more keywords