Electrically switchable photonic diode empowered by chiral resonance
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arXiv
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| Auteurs principaux: | , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866914282415849472 |
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| author | Zhao, Jiaqi Wu, Kexun Yan, Xuecheng Li, Jiewen Xu, Xiaochuan Xu, Ke Li, Yu Zhou, Linjie Chen, Yan Wang, Jiawei |
| author_facet | Zhao, Jiaqi Wu, Kexun Yan, Xuecheng Li, Jiewen Xu, Xiaochuan Xu, Ke Li, Yu Zhou, Linjie Chen, Yan Wang, Jiawei |
| contents | The on-chip integration of nonreciprocal optical devices remains a critical challenge for modern optoelectronics, as conventional magneto-optic approaches suffer from material incompatibility and excessive optical losses. Nonlinear photonic diodes have emerged as a promising magnet-free alternative, yet their widespread adoption has been constrained by inherent limitations in reconfigurability. Here, we present an all-silicon, electrically tunable photonic diode leveraging engineered chiral resonances in an ultra-compact microring architecture. The pronounced asymmetric modal coupling enables nonreciprocal transmission with two distinct operation modes at threshold powers down to -5 dBm. The chirality further enables unprecedented control over self-pulsation dynamics, manifesting in propagation-direction-dependent oscillation thresholds and temporal signatures. Crucially, post-fabrication electrical reconfigurability allows dynamic switching between forward, backward, and disabled states. This work represents a significant advancement in integrated nonreciprocal photonics, offering a CMOS-compatible solution with transformative potential for optical interconnects, photonic neural networks, and signal processing systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_17887 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Electrically switchable photonic diode empowered by chiral resonance Zhao, Jiaqi Wu, Kexun Yan, Xuecheng Li, Jiewen Xu, Xiaochuan Xu, Ke Li, Yu Zhou, Linjie Chen, Yan Wang, Jiawei Optics The on-chip integration of nonreciprocal optical devices remains a critical challenge for modern optoelectronics, as conventional magneto-optic approaches suffer from material incompatibility and excessive optical losses. Nonlinear photonic diodes have emerged as a promising magnet-free alternative, yet their widespread adoption has been constrained by inherent limitations in reconfigurability. Here, we present an all-silicon, electrically tunable photonic diode leveraging engineered chiral resonances in an ultra-compact microring architecture. The pronounced asymmetric modal coupling enables nonreciprocal transmission with two distinct operation modes at threshold powers down to -5 dBm. The chirality further enables unprecedented control over self-pulsation dynamics, manifesting in propagation-direction-dependent oscillation thresholds and temporal signatures. Crucially, post-fabrication electrical reconfigurability allows dynamic switching between forward, backward, and disabled states. This work represents a significant advancement in integrated nonreciprocal photonics, offering a CMOS-compatible solution with transformative potential for optical interconnects, photonic neural networks, and signal processing systems. |
| title | Electrically switchable photonic diode empowered by chiral resonance |
| topic | Optics |
| url | https://arxiv.org/abs/2508.17887 |