Low-loss directional coupler for the C, L and U bands based on subwavelength gratings
Directional couplers are ubiquitous components for power distribution in silicon photonics
integrated circuits. Despite significant advances in their performance, architectures providing …
integrated circuits. Despite significant advances in their performance, architectures providing …
Compact broadband directional couplers using subwavelength gratings
We experimentally demonstrate compact broadband directional couplers using
subwavelength gratings for silicon-on-insulator wafers with silicon layers of 220 nm. The …
subwavelength gratings for silicon-on-insulator wafers with silicon layers of 220 nm. The …
Colorless directional coupler with dispersion engineered sub-wavelength structure
Directional couplers are extensively used devices in integrated optics, but suffer from limited
operational wavelength range. Here we use, for the first time, the dispersive properties of …
operational wavelength range. Here we use, for the first time, the dispersive properties of …
Perfectly vertical surface grating couplers using subwavelength engineering for increased feature sizes
We present perfectly vertical grating couplers for the 220 nm silicon-on-insulator platform
incorporating subwavelength metamaterials to increase the minimum feature sizes and …
incorporating subwavelength metamaterials to increase the minimum feature sizes and …
Broadband and low-cross talk mode multiplexer based on subwavelength-assisted phase matching
Integrated mode multiplexers are key components in photonic networks and are crucial to
achieving higher data density. Asymmetric directional couplers represent one of the most …
achieving higher data density. Asymmetric directional couplers represent one of the most …
Perfectly vertical silicon metamaterial grating couplers with large segmentation periods up to 650 nm
J Zhang, D Melati, Y Grinberg, M Vachon… - arXiv preprint arXiv …, 2023 - arxiv.org
Perfectly vertical grating couplers leveraging metamaterials can achieve both high coupling
efficiency and minimal back reflection. The fabricability of these designs, with segmentations …
efficiency and minimal back reflection. The fabricability of these designs, with segmentations …
High extinction ratio and an ultra-broadband polarization beam splitter in silicon integrated photonics by employing an all-dielectric metamaterial cladding
A Debevc, M Topič, J Krč - Optics Express, 2022 - opg.optica.org
In silicon and other photonic integrated circuit platforms many devices exhibit a large
polarization dependency, therefore a polarization beam splitter (PBS) is an essential …
polarization dependency, therefore a polarization beam splitter (PBS) is an essential …
Broadband mode exchanger based on subwavelength Y-junctions
R Fernández de Cabo, A Sánchez-Sánchez… - …, 2024 - degruyter.com
Multimode silicon photonics, leveraging mode-division multiplexing technologies, offers
significant potential to increase capacity of large-scale multiprocessing systems for on-chip …
significant potential to increase capacity of large-scale multiprocessing systems for on-chip …
Spectral engineering of subwavelength-grating-based contradirectional couplers
We tailor the spectral characteristics of silicon photonic contradirectional couplers (Contra-
DCs), where the design of the coupler is based on placing a subwavelength grating (SWG) …
DCs), where the design of the coupler is based on placing a subwavelength grating (SWG) …
Silicon photonic contradirectional couplers using subwavelength grating waveguides
We propose and demonstrate a novel design of contradirectional couplers in which a
subwavelength grating (SWG) waveguide replaces one of the asymmetric waveguides of the …
subwavelength grating (SWG) waveguide replaces one of the asymmetric waveguides of the …