Polarization Control and TM-Pass Filtering in SiN Photonics Integrated with 2D Multiferroic Materials
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arXiv
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| Format: | Preprint |
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2025
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| author | Dushaq, Ghada Serunjogi, Solomon Tamalampudi, Srinivasa R. Rasras, Mahmoud |
| author_facet | Dushaq, Ghada Serunjogi, Solomon Tamalampudi, Srinivasa R. Rasras, Mahmoud |
| contents | Polarization control is a critical function in integrated photonic circuits, directly impacting performance, stability, and signal integrity. In this work, we demonstrate the integration of multiferroic two-dimensional (2D) material CuCrP2S6 (CCPS) with silicon nitride (SiN) photonic devices to achieve polarization-selective filtering and rotation. Our experimental results show that microring resonators incorporating CCPS exhibit transverse magnetic (TM)-pass filtering with a polarization extinction ratio exceeding 25 dB and a low insertion loss of ~ 0.2-0.4 dB at 1500-1600 nm. Additionally, under TM-mode input, straight waveguides loaded with CCPS can achieve a significant polarization rotation, with azimuth angle shifts reaching up to 92.9°. Simulations and experimental validation indicate that the primary mechanism behind these effects is the polarization-dependent optical mode overlap, governed by the refractive index profile of the CCPS/SiN hybrid system and the waveguides' geometrical dimensions. The anisotropic properties of CCPS provide further enhancement but play a secondary role. These results highlight the potential of CCPS-integrated devices for compact, high-performance polarization control in on-chip photonic platforms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_02210 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Polarization Control and TM-Pass Filtering in SiN Photonics Integrated with 2D Multiferroic Materials Dushaq, Ghada Serunjogi, Solomon Tamalampudi, Srinivasa R. Rasras, Mahmoud Optics Polarization control is a critical function in integrated photonic circuits, directly impacting performance, stability, and signal integrity. In this work, we demonstrate the integration of multiferroic two-dimensional (2D) material CuCrP2S6 (CCPS) with silicon nitride (SiN) photonic devices to achieve polarization-selective filtering and rotation. Our experimental results show that microring resonators incorporating CCPS exhibit transverse magnetic (TM)-pass filtering with a polarization extinction ratio exceeding 25 dB and a low insertion loss of ~ 0.2-0.4 dB at 1500-1600 nm. Additionally, under TM-mode input, straight waveguides loaded with CCPS can achieve a significant polarization rotation, with azimuth angle shifts reaching up to 92.9°. Simulations and experimental validation indicate that the primary mechanism behind these effects is the polarization-dependent optical mode overlap, governed by the refractive index profile of the CCPS/SiN hybrid system and the waveguides' geometrical dimensions. The anisotropic properties of CCPS provide further enhancement but play a secondary role. These results highlight the potential of CCPS-integrated devices for compact, high-performance polarization control in on-chip photonic platforms. |
| title | Polarization Control and TM-Pass Filtering in SiN Photonics Integrated with 2D Multiferroic Materials |
| topic | Optics |
| url | https://arxiv.org/abs/2509.02210 |