Integrated waveguide coupled ultralow-loss multimode waveguides based on silicon nitride resonators

S Cui, Y Yu, K Cao, Z Pan, X Gao, X Zhang - Optics Express, 2024 - opg.optica.org
… be applied to different material platforms, thus greatly relaxing the … description of realistic
optical waveguides and provides … high-confinement waveguides, achieving ultra-low loss with …

Graded-index core-based polarization beam splitters realized with symmetric polymer directional couplers

F Tasnim, N Afsary, MOF Rasel, T Ishigure - Optics Continuum, 2023 - opg.optica.org
optical waveguides also exhibit low propagation loss and … In the SI core waveguides, the
refractive index is uniform … polarized light into a waveguide at the different incident angles, and …

Electro-optic tunable grating-assisted optical waveguide directional coupler in lithium niobate

JH Li, KX Chen - Applied Physics B, 2023 - Springer
… that have stable performance, low loss, and high tuning efficiency. … sets of trial LN waveguides
with different widths through the … the effective refractive index of these waveguides at the …

High-precision measurement of a propagation loss of low-loss single-mode optical waveguides on lithium niobate on insulator

J Lin, J Zhou, R Gao, M Wang, R Wu… - … , and Beam Control …, 2020 - spiedigitallibrary.org
… the highly desirable characteristics of the optical waveguides. … niobate waveguides are
inherent of low refractive index … arms of different lengths, the propagation loss of the single-mode …

Low-loss single-mode integrated waveguides in soda-lime glass

IV Dyakonov, AA Kalinkin, MY Saygin, AG Abroskin… - Applied Physics B, 2016 - Springer
… to form low-loss single-mode optical waveguides in soda-lime … affect the shape and the
size of a modified refractive index … chips of different lengths, each containing ten waveguides. …

High efficiency, small size, and large bandwidth vertical interlayer waveguide coupler

SY Li, LL Wang, D Wu, J You, Y Wang… - Chinese …, 2022 - iopscience.iop.org
… as low loss optical waveguides, variable optical attenuators (… of waveguides of different
layers where coupling is not … Owing to the high refractive index of Si, the light wave can be …

Quantitative study in coupling loss reduction under a large mode-field mismatch using a self-written waveguide

L He, HP Chan, B Li - Optics Express, 2021 - opg.optica.org
… a low coupling loss connection between different optical … of high refractive index contrast
materials, optical devices tend … The mechanism of the methods is to form an optical waveguide

… mid-infrared polarization beam splitter based on an asymmetric directional coupler consisting of GaAs–CaF2 hybrid plasmonic waveguide and GaAs nanowire

F Wang, Y Chen, C Li, T Ma, X Wang, K Yu, L Li - Optics Communications, 2022 - Elsevier
… are highly polarization-sensitive due to the high refractive … In order to solve the polarization
problem and realize a low loss… of the slit waveguide, which is significantly different from the …

Compact and broadband adiabatically bent superlattice-waveguides with negligible insertion loss and ultra-low crosstalk

H Zafar, B Paredes, I Taha, JE Villegas… - … of Selected Topics in …, 2023 - ieeexplore.ieee.org
… in one waveguide is different from the effective refractive index … Additionally, an extremely
low crosstalk value indicates that … Labeye, “A new general approach to optical waveguide path …

[图书][B] Fundamentals of optical waveguides

K Okamoto - 2021 - books.google.com
… chip size very small and low cost. Extremely high refractive index contrast between the silicon
… We consider the slab waveguide with uniform refractive-index profile in the core, as shown …