Reconfigurable inverse-designed phase-change photonics
Chalcogenide phase-change materials (PCMs) offer a promising approach to programmable photonics thanks to their nonvolatile, reversible phase transitions and high refractive index contrast. However, conventional designs are limited by global phase control over entire PCM thin films between fully amo...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2025-01-01
|
| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0234637 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832542795106091008 |
|---|---|
| author | Changming Wu Ziyu Jiao Haoqin Deng Yi-Siou Huang Heshan Yu Ichiro Takeuchi Carlos A. Ríos Ocampo Mo Li |
| author_facet | Changming Wu Ziyu Jiao Haoqin Deng Yi-Siou Huang Heshan Yu Ichiro Takeuchi Carlos A. Ríos Ocampo Mo Li |
| author_sort | Changming Wu |
| collection | DOAJ |
| description | Chalcogenide phase-change materials (PCMs) offer a promising approach to programmable photonics thanks to their nonvolatile, reversible phase transitions and high refractive index contrast. However, conventional designs are limited by global phase control over entire PCM thin films between fully amorphous and fully crystalline states, which restricts device functionality and confines design flexibility and programmability. In this work, we present a novel approach that leverages pixel-level control of PCM in inverse-designed photonic devices, enabling highly reconfigurable, multi-functional operations. We integrate low-loss Sb2Se3 onto a multi-mode interferometer and achieve precise, localized phase manipulation through direct laser writing. This technique allows for flexible programming of the photonic device by adjusting the PCM phase pattern rather than relying on global phase states, thereby enhancing device adaptability. As a proof of concept, we programmed the device as a wavelength-division multiplexer and subsequently reconfigured it into a mode-division multiplexer. Our results underscore the potential of combining inverse design with pixel-wise tuning for next-generation programmable phase-change photonic systems. |
| format | Article |
| id | doaj-art-c5f27e9c575644e5b91bc8755a7edd83 |
| institution | Kabale University |
| issn | 2378-0967 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj-art-c5f27e9c575644e5b91bc8755a7edd832025-02-03T16:36:22ZengAIP Publishing LLCAPL Photonics2378-09672025-01-01101016113016113-710.1063/5.0234637Reconfigurable inverse-designed phase-change photonicsChangming Wu0Ziyu Jiao1Haoqin Deng2Yi-Siou Huang3Heshan Yu4Ichiro Takeuchi5Carlos A. Ríos Ocampo6Mo Li7Department of Electrical and Computer Engineering, University of Washington, Seattle, Washington 98195, USADepartment of Electrical and Computer Engineering, University of Washington, Seattle, Washington 98195, USADepartment of Electrical and Computer Engineering, University of Washington, Seattle, Washington 98195, USADepartment of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, USADepartment of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, USAInstitute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USADepartment of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, USADepartment of Electrical and Computer Engineering, University of Washington, Seattle, Washington 98195, USAChalcogenide phase-change materials (PCMs) offer a promising approach to programmable photonics thanks to their nonvolatile, reversible phase transitions and high refractive index contrast. However, conventional designs are limited by global phase control over entire PCM thin films between fully amorphous and fully crystalline states, which restricts device functionality and confines design flexibility and programmability. In this work, we present a novel approach that leverages pixel-level control of PCM in inverse-designed photonic devices, enabling highly reconfigurable, multi-functional operations. We integrate low-loss Sb2Se3 onto a multi-mode interferometer and achieve precise, localized phase manipulation through direct laser writing. This technique allows for flexible programming of the photonic device by adjusting the PCM phase pattern rather than relying on global phase states, thereby enhancing device adaptability. As a proof of concept, we programmed the device as a wavelength-division multiplexer and subsequently reconfigured it into a mode-division multiplexer. Our results underscore the potential of combining inverse design with pixel-wise tuning for next-generation programmable phase-change photonic systems.http://dx.doi.org/10.1063/5.0234637 |
| spellingShingle | Changming Wu Ziyu Jiao Haoqin Deng Yi-Siou Huang Heshan Yu Ichiro Takeuchi Carlos A. Ríos Ocampo Mo Li Reconfigurable inverse-designed phase-change photonics APL Photonics |
| title | Reconfigurable inverse-designed phase-change photonics |
| title_full | Reconfigurable inverse-designed phase-change photonics |
| title_fullStr | Reconfigurable inverse-designed phase-change photonics |
| title_full_unstemmed | Reconfigurable inverse-designed phase-change photonics |
| title_short | Reconfigurable inverse-designed phase-change photonics |
| title_sort | reconfigurable inverse designed phase change photonics |
| url | http://dx.doi.org/10.1063/5.0234637 |
| work_keys_str_mv | AT changmingwu reconfigurableinversedesignedphasechangephotonics AT ziyujiao reconfigurableinversedesignedphasechangephotonics AT haoqindeng reconfigurableinversedesignedphasechangephotonics AT yisiouhuang reconfigurableinversedesignedphasechangephotonics AT heshanyu reconfigurableinversedesignedphasechangephotonics AT ichirotakeuchi reconfigurableinversedesignedphasechangephotonics AT carlosariosocampo reconfigurableinversedesignedphasechangephotonics AT moli reconfigurableinversedesignedphasechangephotonics |