Mode hybridization analysis in thin film lithium niobate strip ...
WEBOct 7, 2020 · Photonic devices on high-contrast platforms have guided modes that are inherently hybrid in nature 1. They have all six field components (Ex, Ey, Ez, Hx, Hy, Hz) to be non-zero, unlike the planar...
WEBThe complex mode theory is introduced to the simulation domain truncated by the perfectly matching layers (PMLs) enclosed in the perfectly reflected boundaries (PRBs), wherein the discrete complex modes as eigen solutions can
WEBFigure 1. (a) SOI wafer profile showing the 3 µm thick top Si where optical waveguides are formed, the 0.3 µm BOX that serves as the lower cladding, and the 600 µm thick Si substrate. (b) details of a 3µm wide rib waveguide structure with the pear-shaped optical mode power profile shown in cross section. Figure 2.
On-chip mode-selective manipulation based on the modal-field ...
WEBThe present concept of manipulating the evanescent coupling of the mode-channels paves the way for designing multimode silicon photonic devices with flexible mode-selective manipulation for MDM systems. Keywords: mode-selective manipulation; multimode; silicon photonics; subwavelength grating.
Multimode silicon photonics - De Gruyter
WEBIn this paper, a review is given for recent progresses in representative multimode silicon photonic devices and circuits, including two parts. One is for multimode silicon photonics for MDM systems, and the other is for higher-order mode-assisted silicon photonic devices.
On-chip silicon photonic controllable 2 × 2 four-mode ... - Nature
WEBJan 13, 2021 · In this paper, we introduce for the first time a novel 2 × 2 multimode switch design and demonstrate in the proof-of-concept. The device composes of four Y-multijunctions and 2 × 2 multimode ...
Photonic waveguide to free-space Gaussian beam extreme mode …
WEBOct 10, 2018 · To shape the radiation beam fully and manipulate the radiation direction in 3D free space, it is essential to design a mode expander that can achieve a specified mode profile and a...
WEBAs a proof of concept, the phase of the first and second order quasi transverse electric (TE) mode profiles (TE0, TE1) are manipulated by the proposed mode-selective thermo-optic phase shifter (MS-TOPS). Mode-selectivity as a design figure-of-merit (FoM) is realized by deploying subwavelength grating.
Metasurface on integrated photonic platform: from mode …
WEBSilicon nanowire waveguides guide the light in a way that single and few mode fibers define the direction of signal flow. Beyond communication tasks, on-chip cascaded interferometers and photonic meshes are also sought for optical computing and advanced signal processing technology.
Silicon Photonics Mode-Selective Phase Shifter - IEEE Xplore
WEBA novel mode-selective thermo-optic phase shifter (MS-TOPS) enabled by subwavelength grating (SWG) structures is proposed and experimentally demonstrated on a 220 nm waveguide thick silicon photonics chip for the first two …