A reconfigurable multi-channel on-chip photonic filter for programmable optical frequency division
Recent advancements have broadened the application of photon filters based on Bragg gratings within optical communication networks and optical input/output interfaces. Traditional gratings, however, suffer from a fixed refractive index modulation distribution once manufactured, constraining their ad...
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| Format: | Article |
| Language: | English |
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De Gruyter
2025-06-01
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| Series: | Nanophotonics |
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| Online Access: | https://doi.org/10.1515/nanoph-2025-0119 |
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| author | Zhu Simeng Yuan Bocheng Fan Yizhe Al-Rubaiee Mohanad Sun Xiao Li Zhibo Hezarfen Ahmet Seckin Kelly Anthony E. Marsh John H. Hou Lianping |
| author_facet | Zhu Simeng Yuan Bocheng Fan Yizhe Al-Rubaiee Mohanad Sun Xiao Li Zhibo Hezarfen Ahmet Seckin Kelly Anthony E. Marsh John H. Hou Lianping |
| author_sort | Zhu Simeng |
| collection | DOAJ |
| description | Recent advancements have broadened the application of photon filters based on Bragg gratings within optical communication networks and optical input/output interfaces. Traditional gratings, however, suffer from a fixed refractive index modulation distribution once manufactured, constraining their adaptability and flexibility. This study introduces a reconfigurable multi-channel photon filter on a silicon nitride on insulator platform. The filter incorporates an equivalent linearly chirped four-phase-shifted sampled Bragg grating with micro-heaters to enable thermo-optic tuning, facilitating programmable control over transmission spectral features. Experimental outcomes indicate the filter’s capability to seamlessly transition among single, dual, and quad-band configurations, as well as a band-stop mode, with independent tuning of each band. Moreover, optical frequency division multiplexing experiments using a 50 GHz semiconductor mode-locked laser have affirmed the filter’s tunability. In quad-band mode, band separations of 50, 100, and 150 GHz are achievable; in dual and single-band modes, band intervals extend from 150 to 250 GHz, allowing for precise single-wavelength selection. Featuring high tunability, minimal insertion losses, and superior signal side-mode suppression ratio, this filter structure supports the integration of programmable photonic devices into space optical communications, photonic integrated networks, and elastic optical networks. |
| format | Article |
| id | doaj-art-f00a8fc7be3949ec9a10a2e0ef93b3d4 |
| institution | Kabale University |
| issn | 2192-8614 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj-art-f00a8fc7be3949ec9a10a2e0ef93b3d42025-08-20T03:41:43ZengDe GruyterNanophotonics2192-86142025-06-0114152619263110.1515/nanoph-2025-0119A reconfigurable multi-channel on-chip photonic filter for programmable optical frequency divisionZhu Simeng0Yuan Bocheng1Fan Yizhe2Al-Rubaiee Mohanad3Sun Xiao4Li Zhibo5Hezarfen Ahmet Seckin6Kelly Anthony E.7Marsh John H.8Hou Lianping93526University of Glasgow, GlasgowG12 8QQ, UK3526University of Glasgow, GlasgowG12 8QQ, UK3526University of Glasgow, GlasgowG12 8QQ, UK3526University of Glasgow, GlasgowG12 8QQ, UK3526University of Glasgow, GlasgowG12 8QQ, UK3526University of Glasgow, GlasgowG12 8QQ, UK3526University of Glasgow, GlasgowG12 8QQ, UK3526University of Glasgow, GlasgowG12 8QQ, UK3526University of Glasgow, GlasgowG12 8QQ, UK3526University of Glasgow, GlasgowG12 8QQ, UKRecent advancements have broadened the application of photon filters based on Bragg gratings within optical communication networks and optical input/output interfaces. Traditional gratings, however, suffer from a fixed refractive index modulation distribution once manufactured, constraining their adaptability and flexibility. This study introduces a reconfigurable multi-channel photon filter on a silicon nitride on insulator platform. The filter incorporates an equivalent linearly chirped four-phase-shifted sampled Bragg grating with micro-heaters to enable thermo-optic tuning, facilitating programmable control over transmission spectral features. Experimental outcomes indicate the filter’s capability to seamlessly transition among single, dual, and quad-band configurations, as well as a band-stop mode, with independent tuning of each band. Moreover, optical frequency division multiplexing experiments using a 50 GHz semiconductor mode-locked laser have affirmed the filter’s tunability. In quad-band mode, band separations of 50, 100, and 150 GHz are achievable; in dual and single-band modes, band intervals extend from 150 to 250 GHz, allowing for precise single-wavelength selection. Featuring high tunability, minimal insertion losses, and superior signal side-mode suppression ratio, this filter structure supports the integration of programmable photonic devices into space optical communications, photonic integrated networks, and elastic optical networks.https://doi.org/10.1515/nanoph-2025-0119microwave photonicsreconfigurable filtersampled bragg gratingreconstructed equivalent chirp technologyprogrammable frequency division |
| spellingShingle | Zhu Simeng Yuan Bocheng Fan Yizhe Al-Rubaiee Mohanad Sun Xiao Li Zhibo Hezarfen Ahmet Seckin Kelly Anthony E. Marsh John H. Hou Lianping A reconfigurable multi-channel on-chip photonic filter for programmable optical frequency division Nanophotonics microwave photonics reconfigurable filter sampled bragg grating reconstructed equivalent chirp technology programmable frequency division |
| title | A reconfigurable multi-channel on-chip photonic filter for programmable optical frequency division |
| title_full | A reconfigurable multi-channel on-chip photonic filter for programmable optical frequency division |
| title_fullStr | A reconfigurable multi-channel on-chip photonic filter for programmable optical frequency division |
| title_full_unstemmed | A reconfigurable multi-channel on-chip photonic filter for programmable optical frequency division |
| title_short | A reconfigurable multi-channel on-chip photonic filter for programmable optical frequency division |
| title_sort | reconfigurable multi channel on chip photonic filter for programmable optical frequency division |
| topic | microwave photonics reconfigurable filter sampled bragg grating reconstructed equivalent chirp technology programmable frequency division |
| url | https://doi.org/10.1515/nanoph-2025-0119 |
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