Crosstalk reduction between closely spaced optical waveguides by using higher-order modes

S Maurya, R Kolkowski, M Kaivola, A Shevchenko - Physical Review Applied, 2022 - APS
… The high refractive index of silicon enables miniaturization of … is very general and could be
implemented using different … propagation of different types of central-waveguide excitations (…

Switching dynamics in adiabatically coupled PT-symmetric directional coupler consisting of three nonlinear waveguides

P Chaudhary, AK Mishra - Optics Communications, 2024 - Elsevier
… Triple optical waveguide systems with VCC are so designed … different combinations of linear
and nonlinear waveguides … light, n 2 i is the nonlinear refractive index coefficient and A e f f i …

Waveguide asymmetric long-period grating couplers as refractive index sensors

J Høvik, M Yadav, J Wook Noh, A Aksnes - Optics Express, 2020 - opg.optica.org
… being highly sensitive, easily fabricated and highly compact. … both low losses (~0.014 dB /
period) and acceptable coupling … of operating with different refractive index claddings such as …

Silicon-based subwavelength grating polarization beam splitter with asymmetric directional coupler

Z Wang, M Zhao, S Yin, M Jia, X Hou - Laser Physics, 2023 - iopscience.iop.org
… There is a high refractive index difference between the … Different from the ordinary silicon
waveguide in the previous article [19]… the low loss of polarized light. In order to make the device …

42.4: Compact Stereo Waveguide Display Using a Polarization‐Multiplexed In‐coupling Metagrating

Z Liu, C Zhang, Z Huang, LJ Guo - SID Symposium Digest of …, 2021 - Wiley Online Library
… received by different eyes, forming 3D stereo vision. Experimentally … Among these various
approaches, optical waveguide … improved by using high refractive index dielectric material for …

Fabrication-tolerant and low-loss hybrid plasmonic slot waveguide mode converter

Y Wang, Z Yu, Z Zhang, X Sun… - Journal of Lightwave …, 2021 - opg.optica.org
Among the many different types of plasmonic waveguides, … phase matched directional
coupling, the converter is not very … the highrefractive index silicon nitride substrate. Due to the …

Femtosecond laser writing of low-loss three-dimensional waveguide coupler in LiNbO3 crystal

J Lü, G Li, Y Ma, F Chen - Chinese Optics Letters, 2023 - opg.optica.org
… researched optical waveguide device, an optical coupler can … -line waveguide (to measure
the change of the refractive … the propagation losses change (Δα) of different dimensions but …

High Refractive Index Integrated Photonics on Glass Substrates

T Lipka, B Bosnjak, N Alhareeb… - MikroSystemTechnik …, 2021 - ieeexplore.ieee.org
waveguides for efficient end-facet couplers and facilitates … currently limits very low propagation
losses, sufficiently good … , eg applied for interposers between different optical chips [12], …

Lithium niobate thin film polarization beam splitter based on asymmetric directional coupling

Y Wu, X Sun, H Li, C Lu, Y Zhang, S Liu… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
… by harnessing its high refractive index contrast between lithium … the directional coupling
length Lc at different coupling gaps … Yang, “Compact, broadband and lowloss polarization beam …

Design of a modified coupled resonators optical waveguide supporting a frozen mode

MY Nada, T Mealy, MS Islam, I Vitebskiy… - Journal of Lightwave …, 2023 - opg.optica.org
… are different than the radii of the lower ones. The gap … this article uses the refractive indices
of nsi = 3.48 and nc = 1.45 … structure with such very small loss, a very small threshold in the …