Mode-Conversion-Based Chirped Bragg Gratings on Thin-Film Lithium Niobate
In this work, we propose a mode-conversion-based chirped Bragg grating on thin-film lithium niobate (TFLN). The device is mainly composed of a 4.7-mm long chirped asymmetric Bragg grating and an adiabatic directional coupler (ADC). The mode conversion introduced by the ADC allows the chirped Bragg g...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/9/11/828 |
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| author | Donghe Tu Xingrui Huang Yuxiang Yin Hang Yu Zhiguo Yu Huan Guan Zhiyong Li |
| author_facet | Donghe Tu Xingrui Huang Yuxiang Yin Hang Yu Zhiguo Yu Huan Guan Zhiyong Li |
| author_sort | Donghe Tu |
| collection | DOAJ |
| description | In this work, we propose a mode-conversion-based chirped Bragg grating on thin-film lithium niobate (TFLN). The device is mainly composed of a 4.7-mm long chirped asymmetric Bragg grating and an adiabatic directional coupler (ADC). The mode conversion introduced by the ADC allows the chirped Bragg grating operates in reflection without using an off-chip circulator. The proposed device has experimentally achieved a total time delay of 73.4 ps over an operating bandwidth of 15 nm. This mode-conversion-based chirped Bragg grating shows excellent compatibility with other devices on TFLN, making it suitable in monolithically integrated microwave photonics, sensing, and optical communication systems. |
| first_indexed | 2024-03-09T18:44:22Z |
| format | Article |
| id | doaj.art-b6985d0a7c87434ca3bb7073bfab92ce |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-09T18:44:22Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-b6985d0a7c87434ca3bb7073bfab92ce2023-11-24T06:22:59ZengMDPI AGPhotonics2304-67322022-11-0191182810.3390/photonics9110828Mode-Conversion-Based Chirped Bragg Gratings on Thin-Film Lithium NiobateDonghe Tu0Xingrui Huang1Yuxiang Yin2Hang Yu3Zhiguo Yu4Huan Guan5Zhiyong Li6State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaState Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaIn this work, we propose a mode-conversion-based chirped Bragg grating on thin-film lithium niobate (TFLN). The device is mainly composed of a 4.7-mm long chirped asymmetric Bragg grating and an adiabatic directional coupler (ADC). The mode conversion introduced by the ADC allows the chirped Bragg grating operates in reflection without using an off-chip circulator. The proposed device has experimentally achieved a total time delay of 73.4 ps over an operating bandwidth of 15 nm. This mode-conversion-based chirped Bragg grating shows excellent compatibility with other devices on TFLN, making it suitable in monolithically integrated microwave photonics, sensing, and optical communication systems.https://www.mdpi.com/2304-6732/9/11/828integrated photonicsthin-film lithium niobatechirped Bragg gratingmode conversion |
| spellingShingle | Donghe Tu Xingrui Huang Yuxiang Yin Hang Yu Zhiguo Yu Huan Guan Zhiyong Li Mode-Conversion-Based Chirped Bragg Gratings on Thin-Film Lithium Niobate Photonics integrated photonics thin-film lithium niobate chirped Bragg grating mode conversion |
| title | Mode-Conversion-Based Chirped Bragg Gratings on Thin-Film Lithium Niobate |
| title_full | Mode-Conversion-Based Chirped Bragg Gratings on Thin-Film Lithium Niobate |
| title_fullStr | Mode-Conversion-Based Chirped Bragg Gratings on Thin-Film Lithium Niobate |
| title_full_unstemmed | Mode-Conversion-Based Chirped Bragg Gratings on Thin-Film Lithium Niobate |
| title_short | Mode-Conversion-Based Chirped Bragg Gratings on Thin-Film Lithium Niobate |
| title_sort | mode conversion based chirped bragg gratings on thin film lithium niobate |
| topic | integrated photonics thin-film lithium niobate chirped Bragg grating mode conversion |
| url | https://www.mdpi.com/2304-6732/9/11/828 |
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