Topological edge states electro-optic modulator based on valley photonic crystals

Yubing Wang; Faisal Nadeem Khan

doi:10.1117/12.3023638

18 March 2024 Topological edge states electro-optic modulator based on valley photonic crystals

Yubing Wang, Faisal Nadeem Khan

Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 131044U (2024) https://doi.org/10.1117/12.3023638
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China

Abstract

Topological photonic devices provide robust transmission of optical signals. This work proposes a topological modulator scheme, which constructs valley photonic crystals on a silicon slab. Mach-Zehnder (MZ) structure is formed by the valley edge states, and based on the carrier dispersion effects, electro-optic modulation is achieved. The device size is only 18.59 × 47.1 μm. Theoretical analysis and simulation results show that the half-wave voltage length product can reach 0.0201 V ∙ cm. Compared to traditional silicon MZ modulators, it greatly reduces size and improves modulation efficiency.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yubing Wang and Faisal Nadeem Khan "Topological edge states electro-optic modulator based on valley photonic crystals", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 131044U (18 March 2024); https://doi.org/10.1117/12.3023638

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