Lithium Niobate Vertical Cavity Electro-Optic Modulator
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arXiv
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| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909885852024832 |
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| author | Liu, Jikun Liu, Weiye Wu, Wei Guo, Ziang Zhu, Changrui Qu, Lun Zhu, Pengfei Zhang, Yiting Chen, Zhihao Li, Qinglian Zheng, Dahuai Liu, Hongde Wang, Shaowei Cai, Wei Ren, Mengxin Xu, Jingjun |
| author_facet | Liu, Jikun Liu, Weiye Wu, Wei Guo, Ziang Zhu, Changrui Qu, Lun Zhu, Pengfei Zhang, Yiting Chen, Zhihao Li, Qinglian Zheng, Dahuai Liu, Hongde Wang, Shaowei Cai, Wei Ren, Mengxin Xu, Jingjun |
| contents | Electro-optic modulators (EOMs) are vital for optical imaging and information processing, with free-space devices enabling LiDAR and beam control. Lithium niobate (LN), powered by the strong Pockels effect and scalable LN-on-insulator (LNOI) platform, has become a leading material for high-performance EOMs. Here we realize a vertical-cavity EOM in which an LN membrane is sandwiched between two photonic crystal (PhC) mirrors with integrated electrodes. The cavity supports sharp defect-mode resonances that shift efficiently under the Pockels effect, enabling strong modulation of transmission. Experiments show a depth of 43 % at 50 V and a bandwidth of 5 MHz. This architecture combines free-space compatibility with fabrication simplicity, opening new routes to compact electro-optic platforms for ranging, holography, and beam steering. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_02202 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Lithium Niobate Vertical Cavity Electro-Optic Modulator Liu, Jikun Liu, Weiye Wu, Wei Guo, Ziang Zhu, Changrui Qu, Lun Zhu, Pengfei Zhang, Yiting Chen, Zhihao Li, Qinglian Zheng, Dahuai Liu, Hongde Wang, Shaowei Cai, Wei Ren, Mengxin Xu, Jingjun Optics Electro-optic modulators (EOMs) are vital for optical imaging and information processing, with free-space devices enabling LiDAR and beam control. Lithium niobate (LN), powered by the strong Pockels effect and scalable LN-on-insulator (LNOI) platform, has become a leading material for high-performance EOMs. Here we realize a vertical-cavity EOM in which an LN membrane is sandwiched between two photonic crystal (PhC) mirrors with integrated electrodes. The cavity supports sharp defect-mode resonances that shift efficiently under the Pockels effect, enabling strong modulation of transmission. Experiments show a depth of 43 % at 50 V and a bandwidth of 5 MHz. This architecture combines free-space compatibility with fabrication simplicity, opening new routes to compact electro-optic platforms for ranging, holography, and beam steering. |
| title | Lithium Niobate Vertical Cavity Electro-Optic Modulator |
| topic | Optics |
| url | https://arxiv.org/abs/2511.02202 |