Triangular cross-section grating couplers for integrated quantum nanophotonic hardware in silicon carbide
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866912342334242816 |
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| author | Saha, Pranta Rubin, Alex H. Majety, Sridhar Dhuey, Scott Radulaski, Marina |
| author_facet | Saha, Pranta Rubin, Alex H. Majety, Sridhar Dhuey, Scott Radulaski, Marina |
| contents | We design, fabricate, and characterize fishbone grating couplers for triangular cross-section photonics in silicon carbide compatible with color center integration. The periodic and aperiodic grating coupler designs are optimized to outcouple up to 31% of light in the fundamental TE mode of a triangular waveguide. The devices are fabricated using an ion beam etching process in a 4H-SiC sample implanted with NV center ensembles. The room-temperature transmission and the cryogenic NV center photoluminescence collection measurements indicate experimental grating coupler efficiency of up to 24%. This result provides a scalable method to efficiently extract color center light from SiC quantum nanophotonic devices to free-space optics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_12150 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Triangular cross-section grating couplers for integrated quantum nanophotonic hardware in silicon carbide Saha, Pranta Rubin, Alex H. Majety, Sridhar Dhuey, Scott Radulaski, Marina Optics We design, fabricate, and characterize fishbone grating couplers for triangular cross-section photonics in silicon carbide compatible with color center integration. The periodic and aperiodic grating coupler designs are optimized to outcouple up to 31% of light in the fundamental TE mode of a triangular waveguide. The devices are fabricated using an ion beam etching process in a 4H-SiC sample implanted with NV center ensembles. The room-temperature transmission and the cryogenic NV center photoluminescence collection measurements indicate experimental grating coupler efficiency of up to 24%. This result provides a scalable method to efficiently extract color center light from SiC quantum nanophotonic devices to free-space optics. |
| title | Triangular cross-section grating couplers for integrated quantum nanophotonic hardware in silicon carbide |
| topic | Optics |
| url | https://arxiv.org/abs/2410.12150 |