Non-Hermitian Optical Tunable System Based on Lithium Niobate Coupling Resonator
Recently, an exceptional point (EP) was constructed in a coupled double-ring resonator. Generally, such non-Hermitian optical systems are realized via material selection and a spatially precise layout. However, because of material limitations, some system parameters cannot be changed after the waveg...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9878032/ |
| _version_ | 1798035827050151936 |
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| author | Xianpeng Lv Qijing Lin Wentao Qiu Heyuan Guan Huihui Lu |
| author_facet | Xianpeng Lv Qijing Lin Wentao Qiu Heyuan Guan Huihui Lu |
| author_sort | Xianpeng Lv |
| collection | DOAJ |
| description | Recently, an exceptional point (EP) was constructed in a coupled double-ring resonator. Generally, such non-Hermitian optical systems are realized via material selection and a spatially precise layout. However, because of material limitations, some system parameters cannot be changed after the waveguide is fabricated. In this study, We demonstrate a lithium niobate-based tunable system for controlling system dispersion and loss, the resonator structure made of lithium niobate is theoretically and numerically investigated and analyzed. Lithium niobate is chosen because it exhibits good electro-optic properties. Furthermore, the real part of the potential energy term of the non-Hermitian system is regulated using external electric field. Consequently, a frequency shift of up to 149 GHz is observed in the double characteristic peak of the transmission spectrum with a contrast of up to 0.43. In addition, a gain-influenced EP is observed in a coupled dual-ring resonator system by introducing gain material. It has potential application in future optical fiber communication, optical quantum computing, and environmental sensing. |
| first_indexed | 2024-04-11T21:03:41Z |
| format | Article |
| id | doaj.art-29c4309274ea40dabac0886d98b43391 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-04-11T21:03:41Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-29c4309274ea40dabac0886d98b433912022-12-22T04:03:25ZengIEEEIEEE Photonics Journal1943-06552022-01-011451510.1109/JPHOT.2022.32043669878032Non-Hermitian Optical Tunable System Based on Lithium Niobate Coupling ResonatorXianpeng Lv0https://orcid.org/0000-0002-8263-268XQijing Lin1Wentao Qiu2https://orcid.org/0000-0002-8665-3760Heyuan Guan3https://orcid.org/0000-0002-7203-9479Huihui Lu4https://orcid.org/0000-0002-8761-5723Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou, ChinaKey Laboratory of Optoelectronic Information and Sensing Technologies of Guangdong Higher Education Institutes, Jinan University, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou, ChinaGuangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Department of Optoelectronic Engineering, Jinan University, Guangzhou, ChinaRecently, an exceptional point (EP) was constructed in a coupled double-ring resonator. Generally, such non-Hermitian optical systems are realized via material selection and a spatially precise layout. However, because of material limitations, some system parameters cannot be changed after the waveguide is fabricated. In this study, We demonstrate a lithium niobate-based tunable system for controlling system dispersion and loss, the resonator structure made of lithium niobate is theoretically and numerically investigated and analyzed. Lithium niobate is chosen because it exhibits good electro-optic properties. Furthermore, the real part of the potential energy term of the non-Hermitian system is regulated using external electric field. Consequently, a frequency shift of up to 149 GHz is observed in the double characteristic peak of the transmission spectrum with a contrast of up to 0.43. In addition, a gain-influenced EP is observed in a coupled dual-ring resonator system by introducing gain material. It has potential application in future optical fiber communication, optical quantum computing, and environmental sensing.https://ieeexplore.ieee.org/document/9878032/Coupled resonatorselectro-optical effectsinte- grated opticsoptical waveguides |
| spellingShingle | Xianpeng Lv Qijing Lin Wentao Qiu Heyuan Guan Huihui Lu Non-Hermitian Optical Tunable System Based on Lithium Niobate Coupling Resonator IEEE Photonics Journal Coupled resonators electro-optical effects inte- grated optics optical waveguides |
| title | Non-Hermitian Optical Tunable System Based on Lithium Niobate Coupling Resonator |
| title_full | Non-Hermitian Optical Tunable System Based on Lithium Niobate Coupling Resonator |
| title_fullStr | Non-Hermitian Optical Tunable System Based on Lithium Niobate Coupling Resonator |
| title_full_unstemmed | Non-Hermitian Optical Tunable System Based on Lithium Niobate Coupling Resonator |
| title_short | Non-Hermitian Optical Tunable System Based on Lithium Niobate Coupling Resonator |
| title_sort | non hermitian optical tunable system based on lithium niobate coupling resonator |
| topic | Coupled resonators electro-optical effects inte- grated optics optical waveguides |
| url | https://ieeexplore.ieee.org/document/9878032/ |
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