Electrical tunable topological valley photonic crystals for on-chip optical communications in the telecom band
On-chip optical communications are in increasingly demand for low-loss, small-footprint and power-efficient waveguiding solutions in the telecom band. However, most integrated optical circuits suffer from high propagation loss and low integration degree. Through manipulating the valley-dependent top...
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sg-ntu-dr.10356-1649382023-02-28T20:12:36Z Electrical tunable topological valley photonic crystals for on-chip optical communications in the telecom band Qi, Zhipeng Hu, Guohua Deng, Chunyu Sun, Hao Sun, Yaohui Li, Ying Liu, Bo Bai, Yu Chen, Shuaidong Cui, Yiping School of Physical and Mathematical Sciences Science::Physics Light Modulation Optical Communications On-chip optical communications are in increasingly demand for low-loss, small-footprint and power-efficient waveguiding solutions in the telecom band. However, most integrated optical circuits suffer from high propagation loss and low integration degree. Through manipulating the valley-dependent topological phase of light, we have experimentally demonstrated both robust optical transport and electrical modulation of lightwaves at telecom wavelengths in the valley photonic crystals. With the adoption of valley kink states, the 25 Gbit/s optical signal at 1550 nm is successfully transmitted through a highly twisted interface. Furthermore, an extreme high data rate of 100 Gbit/s is demonstrated with such topological waveguide by wavelength division multiplexing. The electrical tunability of the topological modulators based on thermo-optic effect is also verified, opening a novel route towards active valley kink photonic devices. Our study shows a great possibility of making use of the topological protection in building up high-speed datalinks on a chip. Published version This work was supported by the Innovation and Entrepreneurship Program of Jiangsu Province (JSSCBS20210467), the Natural Science Foundation of the Jiangsu Higher Institution of China (21KJB140012), the Natural Science Foundation of Jiangsu Province (SBK2021041180), the National Natural Science Foundation of China (62105158, 62075038). 2023-02-28T08:35:19Z 2023-02-28T08:35:19Z 2022 Journal Article Qi, Z., Hu, G., Deng, C., Sun, H., Sun, Y., Li, Y., Liu, B., Bai, Y., Chen, S. & Cui, Y. (2022). Electrical tunable topological valley photonic crystals for on-chip optical communications in the telecom band. Nanophotonics, 11(18), 4273-4285. https://dx.doi.org/10.1515/nanoph-2022-0169 2192-8614 https://hdl.handle.net/10356/164938 10.1515/nanoph-2022-0169 2-s2.0-85136187413 18 11 4273 4285 en Nanophotonics © 2022 the author(s), published by De Gruyter. This work is licensed under the Creative Commons Attribution 4.0 International License. application/pdf |
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Science::Physics Light Modulation Optical Communications Qi, Zhipeng Hu, Guohua Deng, Chunyu Sun, Hao Sun, Yaohui Li, Ying Liu, Bo Bai, Yu Chen, Shuaidong Cui, Yiping Electrical tunable topological valley photonic crystals for on-chip optical communications in the telecom band |
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On-chip optical communications are in increasingly demand for low-loss, small-footprint and power-efficient waveguiding solutions in the telecom band. However, most integrated optical circuits suffer from high propagation loss and low integration degree. Through manipulating the valley-dependent topological phase of light, we have experimentally demonstrated both robust optical transport and electrical modulation of lightwaves at telecom wavelengths in the valley photonic crystals. With the adoption of valley kink states, the 25 Gbit/s optical signal at 1550 nm is successfully transmitted through a highly twisted interface. Furthermore, an extreme high data rate of 100 Gbit/s is demonstrated with such topological waveguide by wavelength division multiplexing. The electrical tunability of the topological modulators based on thermo-optic effect is also verified, opening a novel route towards active valley kink photonic devices. Our study shows a great possibility of making use of the topological protection in building up high-speed datalinks on a chip. |
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School of Physical and Mathematical Sciences |
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School of Physical and Mathematical Sciences Qi, Zhipeng Hu, Guohua Deng, Chunyu Sun, Hao Sun, Yaohui Li, Ying Liu, Bo Bai, Yu Chen, Shuaidong Cui, Yiping |
format |
Article |
author |
Qi, Zhipeng Hu, Guohua Deng, Chunyu Sun, Hao Sun, Yaohui Li, Ying Liu, Bo Bai, Yu Chen, Shuaidong Cui, Yiping |
author_sort |
Qi, Zhipeng |
title |
Electrical tunable topological valley photonic crystals for on-chip optical communications in the telecom band |
title_short |
Electrical tunable topological valley photonic crystals for on-chip optical communications in the telecom band |
title_full |
Electrical tunable topological valley photonic crystals for on-chip optical communications in the telecom band |
title_fullStr |
Electrical tunable topological valley photonic crystals for on-chip optical communications in the telecom band |
title_full_unstemmed |
Electrical tunable topological valley photonic crystals for on-chip optical communications in the telecom band |
title_sort |
electrical tunable topological valley photonic crystals for on-chip optical communications in the telecom band |
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2023 |
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https://hdl.handle.net/10356/164938 |
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1759858299041218560 |