Experimental Demonstration of Compact Mode Converter Based on Conformal Dielectric Metasurface

Experimental Demonstration of Compact Mode Converter Based on Conformal Dielectric Metasurface

In this letter, we designed and experimentally demonstrated a compact mode converter in silicon-on-insulator (SOI) waveguide based on conformal dielectric metasurface, which uses polygonal slot structure to manipulate the wavefront of guided modes. Mode conversion from TE0 to TE2 mode can be realize...

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Veröffentlicht in:IEEE photonics technology letters 2020-09, Vol.32 (18), p.1-1
Hauptverfasser: Hao, Lijun, Zhao, Yong, Wu, Yitao, He, Zhengqian, Shi, Yuechun, Xiao, Rulei, Dai, Pan, Fang, Tao, Han, Zhanghua, Chen, Xiangfei
Format: Artikel
Sprache:eng
Schlagworte:
conformal dielectric metasurface
Converters
Directional couplers
Insertion loss
Integrated optics
Metasurfaces
mode converter
Silicon
Wave fronts
Waveguides
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Zusammenfassung:In this letter, we designed and experimentally demonstrated a compact mode converter in silicon-on-insulator (SOI) waveguide based on conformal dielectric metasurface, which uses polygonal slot structure to manipulate the wavefront of guided modes. Mode conversion from TE0 to TE2 mode can be realized within an ultracompact size (∼7.66 μm) by designing the arrow-like slot structure. With the help of asymmetric directional coupler (ADC), the TE0-to-TE2 mode converter was measured in the experiment with low insertion loss (IL) (
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2020.3013923