Simulation and Design of LiNbO<inline-formula><tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula> Modulators With Switched Segmented Electrode Structure for High Bandwidth and Low Half-Wave Voltage
A lithium niobate thin-film(LNTF) electro-optic modulator(EOM) with segmented electrode structure is investigated, and the influence of the modulator's structural configuration on its performance is achieved. In contrast to conventional couplers, the design incorporates a 2 × 2...
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| Format: | Article |
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10388417/ |
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| author | Hao Chen Huangfan Wang Feiwan Xie Shaohua Yang Huafeng Dong Fugen Wu Wenyuan Liao |
| author_facet | Hao Chen Huangfan Wang Feiwan Xie Shaohua Yang Huafeng Dong Fugen Wu Wenyuan Liao |
| author_sort | Hao Chen |
| collection | DOAJ |
| description | A lithium niobate thin-film(LNTF) electro-optic modulator(EOM) with segmented electrode structure is investigated, and the influence of the modulator's structural configuration on its performance is achieved. In contrast to conventional couplers, the design incorporates a 2 × 2 S-shaped directional coupler. Our modulator achieves a bandwidth of nearly 110 GHz and a half-wave voltage of 1.45 V <inline-formula><tex-math notation="LaTeX">$\cdot$</tex-math></inline-formula> cm. A comparative analysis between two configurations: one with SiO<inline-formula><tex-math notation="LaTeX">$_{2}$</tex-math></inline-formula> cladding covering the entire surface and the other with coverage limited to the electrode gaps, which reveals the latter potential for enhancing device performance. The accuracy of the simulation results is substantiated through both software analysis and theoretical calculations. The simulation results provide valuable insights for the design of LNTF EOM, highlighting the efficacy of the proposed segmented electrode structure. |
| format | Article |
| id | doaj-art-a7cc550c4e70410abd92c948d0c4cf04 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-a7cc550c4e70410abd92c948d0c4cf042025-08-20T03:32:37ZengIEEEIEEE Photonics Journal1943-06552024-01-011621710.1109/JPHOT.2024.335269710388417Simulation and Design of LiNbO<inline-formula><tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula> Modulators With Switched Segmented Electrode Structure for High Bandwidth and Low Half-Wave VoltageHao Chen0https://orcid.org/0009-0005-7961-7189Huangfan Wang1Feiwan Xie2Shaohua Yang3https://orcid.org/0009-0002-0426-1331Huafeng Dong4https://orcid.org/0000-0002-4694-8783Fugen Wu5Wenyuan Liao6School of Materials and Energy, Guangdong University of Technology, Guangzhou, ChinaSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, ChinaGuangdong University of Technology, School of International Education, Guangzhou, ChinaReliability Physics and Application Technology of Electronic Component Key Laboratory, Guangzhou, ChinaSchool of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou, ChinaSchool of Materials and Energy, Guangdong University of Technology, Guangzhou, ChinaReliability Physics and Application Technology of Electronic Component Key Laboratory, Guangzhou, ChinaA lithium niobate thin-film(LNTF) electro-optic modulator(EOM) with segmented electrode structure is investigated, and the influence of the modulator's structural configuration on its performance is achieved. In contrast to conventional couplers, the design incorporates a 2 × 2 S-shaped directional coupler. Our modulator achieves a bandwidth of nearly 110 GHz and a half-wave voltage of 1.45 V <inline-formula><tex-math notation="LaTeX">$\cdot$</tex-math></inline-formula> cm. A comparative analysis between two configurations: one with SiO<inline-formula><tex-math notation="LaTeX">$_{2}$</tex-math></inline-formula> cladding covering the entire surface and the other with coverage limited to the electrode gaps, which reveals the latter potential for enhancing device performance. The accuracy of the simulation results is substantiated through both software analysis and theoretical calculations. The simulation results provide valuable insights for the design of LNTF EOM, highlighting the efficacy of the proposed segmented electrode structure.https://ieeexplore.ieee.org/document/10388417/LNTF EOMSegmented electrode structures-shape directional couplerelectrode gap coveragehigh bandwidthlow half-wave voltage |
| spellingShingle | Hao Chen Huangfan Wang Feiwan Xie Shaohua Yang Huafeng Dong Fugen Wu Wenyuan Liao Simulation and Design of LiNbO<inline-formula><tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula> Modulators With Switched Segmented Electrode Structure for High Bandwidth and Low Half-Wave Voltage IEEE Photonics Journal LNTF EOM Segmented electrode structure s-shape directional coupler electrode gap coverage high bandwidth low half-wave voltage |
| title | Simulation and Design of LiNbO<inline-formula><tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula> Modulators With Switched Segmented Electrode Structure for High Bandwidth and Low Half-Wave Voltage |
| title_full | Simulation and Design of LiNbO<inline-formula><tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula> Modulators With Switched Segmented Electrode Structure for High Bandwidth and Low Half-Wave Voltage |
| title_fullStr | Simulation and Design of LiNbO<inline-formula><tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula> Modulators With Switched Segmented Electrode Structure for High Bandwidth and Low Half-Wave Voltage |
| title_full_unstemmed | Simulation and Design of LiNbO<inline-formula><tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula> Modulators With Switched Segmented Electrode Structure for High Bandwidth and Low Half-Wave Voltage |
| title_short | Simulation and Design of LiNbO<inline-formula><tex-math notation="LaTeX">$_{3}$</tex-math></inline-formula> Modulators With Switched Segmented Electrode Structure for High Bandwidth and Low Half-Wave Voltage |
| title_sort | simulation and design of linbo inline formula tex math notation latex 3 tex math inline formula modulators with switched segmented electrode structure for high bandwidth and low half wave voltage |
| topic | LNTF EOM Segmented electrode structure s-shape directional coupler electrode gap coverage high bandwidth low half-wave voltage |
| url | https://ieeexplore.ieee.org/document/10388417/ |
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