Valley-Hall photonic crystal waveguides under non-Hermitian active defect

S Jayaram, YJ Tan, N Navaratna, TCW Tan… - Applied Physics …, 2024 - pubs.aip.org
Photonic transport facilitated by topological protection is a proposed advantage of photonic
topological waveguides based on valley photonic crystals (VPCs). Although topological …

150 Gbps THz Chipscale Topological Photonic Diplexer

M Gupta, A Kumar, P Pitchappa, YJ Tan… - Advanced …, 2024 - Wiley Online Library
Photonic diplexers are being widely investigated for high data transfer rates in on‐chip
communication. However, dividing the available spectrum into nonoverlapping multicarrier …

Engineering the breaking of topological protection in valley photonic crystals enables to design chip level functions for THz 6G communications and beyond

AS Mohammed, G Lévêque… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
The realization of integrated, low-loss, and efficient systems for data-intensive applications
such as augmented and virtual reality requires on-chip integrated photonic circuits, which …

[HTML][HTML] Design and analysis of 2D one-way splitter waveguide based on topological photonics

M Mehdipoura, M Moeini, V Ahmadi, R Poursalehi - Scientific Reports, 2024 - nature.com
We present a new high-efficiency splitter waveguide design based on photonic topological
insulators. The system's robust edge states allow electromagnetic waves to propagate in the …

[HTML][HTML] Ultrabroadband valley transmission and corner states in valley photonic crystals with dendritic structure

M Li, Y Liu, L Du, P Li, Y Dong, L Tao, Z Li… - Communications …, 2024 - nature.com
In photonic crystal systems, topologically protected edge states and corner states can be
achieved by breaking spatial inversion symmetry, which is expected to be applied to …

Asymmetric frequency multiplexing topological devices based on a floating edge band

J Ma, C Ouyang, Y Yang, D Wang, H Li, L Niu… - Photonics …, 2024 - opg.optica.org
Topological photonics provides a platform for robust energy transport regardless of sharp
corners and defects. Recently, the frequency multiplexing topological devices have attracted …

Exciting topological edge states by using plane waves in valley-Hall photonic crystal slabs

KH Kim, KK Om - Optics Communications, 2024 - Elsevier
Topological edge states are commonly excited by dipole sources or waveguide couplers. In
practice, however, such near-field excitations are unfavorable and the simplest way is to use …

Ultracompact topological waveguiding configurations based on valley photonic crystals with incomplete bandgaps for on-chip optical interconnections and …

Z Qi, G Hu, X Song, H Sun, W Zhu, Y Sun… - Optics & Laser …, 2025 - Elsevier
Topological photonics allow for the significant improvements in the performances and
integration degrees of on-chip optical devices, paving the way for the build-up of next …

Compact on-chip power splitter based on topological photonic crystal

P Zhang, J Zhang, L Gu, L Fang, Y Zhang… - Optical Materials …, 2024 - opg.optica.org
We propose and demonstrate an on-chip 1× N power splitter based on topological photonic
crystal (TPC) on a monolithic silicon photonic platform. Benefiting from the valley-locked …