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
In this paper, we design and demonstrate polymer-based polarization beam splitters
realized with parabolic graded-index (GI) directional couplers at 1550 nm. We design and …

Polarization manipulation on step-index composite polymer beam splitters for photonics circuitry

N Afsary, F Tasnim, MOF Rasel, T Ishigure - Heliyon, 2024 - cell.com
This paper presents composite beam splitters realized with polymer materials for developing
photonic integrated circuits. We used organic-inorganic hybrid polymer materials to form this …

Ultra-low loss SOI waveguide crossings designed by a hybrid global optimization based on deep learning

W Lu, H Shi, C Ma, Z Li, S Zhu, Y Wu, R Tai - Optics Communications, 2024 - Elsevier
We demonstrate an ultra-low loss single-mode silicon waveguide crossing and an ultra-
compact and ultra-low loss polarization-insensitive silicon waveguide crossing using a …

Broadband and Compact Silicon Multimode Waveguide Bends Based on Hybrid Shape Optimization

J Liao, Y Tian, Z Yangd, H Xu, T Dai… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
Multimode waveguide bend (MWB) is one of the essential components for achieving high-
density integration of on-chip mode-division multiplexing (MDM). This paper proposes a low …

Four-mode thermo-optic switch based on Y-junctions integrated with multimode interferometers

S Sun, Y Xie, Y Che, T Lian, X Sun, Q Yu… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Mode-insensitive optical switch is becoming more and more important as one of the key
elements for mode-division multiplexing (MDM) optical communication systems. However …

Low-loss and compact, dual-mode, 3-dB power splitter combining a directional coupler, a multimode interferometer, and a Y-junction

J Long, H Jia, J Zhang, C Chen - Applied Optics, 2024 - opg.optica.org
Multimode power splitters are the fundamental building blocks in mode division multiplexing
systems. In this paper, we propose a low-loss and compact, dual-mode, 3-dB power splitter …

Optical switching optimization with nonlinear coupler-integrated polymer phase shifters

MK Alam, N Afsary, MS Parvez, MD Rasel - 2023 - preprints.opticaopen.org
This study introduces and substantiates the operational viability of a novel optical switch,
realized through a multimode interference (MMI)-based Y-branch architecture, and holds …

Compact and broadband dual-polarization waveguide crossing utilizing subwavelength-hole-assisted MMI couplers

B Ni, C Luo, H Chen, S Wu, L Hou, H Liu, J Xiong - Optics Letters, 2023 - opg.optica.org
In this Letter, an ultracompact silicon-based waveguide crossing for dual polarizations is
proposed and experimentally demonstrated using subwavelength-hole-assisted multimode …

[PDF][PDF] Polarization manipulation on step-index composite polymer couplers for photonics circuitry

N Afsary, F Tasnim, MOF Rasel, T Ishigure - 2023 - academia.edu
In this research, a high-performance, polymer-based step-index composite coupler is
designed and analyzed for integrated circuit applications, as it provides a critical tool for …

Ultra-broadband Four-mode Waveguide Crossing via Inverse Design Method

J Chen, W Pan, C Ji - 2023 IEEE Photonics Conference (IPC), 2023 - ieeexplore.ieee.org
Ultra-broadband Four-mode Waveguide Crossing via Inverse Design Method Page 1 Ultra-broadband
Four-mode Waveguide Crossing via Inverse Design Method Jinhua Chen1*, Weiwei Pan1 …