Electrical control of quantum dots in GaAs-on-insulator waveguides for coherent single-photon generation
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arXiv
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| Autores principales: | , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866915432283242496 |
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| author | Salamon, Hanna Wang, Ying Snedker-Nielsen, Arnulf Shadmani, Atefeh Schott, Rüdiger Balauroiu, Mircea Volet, Nicolas Ludwig, Arne Midolo, Leonardo |
| author_facet | Salamon, Hanna Wang, Ying Snedker-Nielsen, Arnulf Shadmani, Atefeh Schott, Rüdiger Balauroiu, Mircea Volet, Nicolas Ludwig, Arne Midolo, Leonardo |
| contents | The integration of coherent quantum emitters with silicon photonic platforms essential for scalable quantum technologies. We demonstrate electrically controlled self-assembled quantum dots embedded in GaAs waveguides bonded onto a SiO2/Si substrate and coupled to low-loss SiN waveguides. Our approach uses a die-to-die adhesive bonding process to realize a GaAs-on-insulator platform incorporating a p-i-n junction for charge noise suppression and Stark tuning of excitonic transitions. Resonance fluorescence measurements reveal narrow optical linewidths below 2 μeV and high single-photon purity, matching the performance of unprocessed GaAs devices. These results establish a practical route to integrate high-coherence quantum light sources with mature silicon photonics, enabling scalable quantum photonic integrated circuits |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_04584 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Electrical control of quantum dots in GaAs-on-insulator waveguides for coherent single-photon generation Salamon, Hanna Wang, Ying Snedker-Nielsen, Arnulf Shadmani, Atefeh Schott, Rüdiger Balauroiu, Mircea Volet, Nicolas Ludwig, Arne Midolo, Leonardo Optics Quantum Physics The integration of coherent quantum emitters with silicon photonic platforms essential for scalable quantum technologies. We demonstrate electrically controlled self-assembled quantum dots embedded in GaAs waveguides bonded onto a SiO2/Si substrate and coupled to low-loss SiN waveguides. Our approach uses a die-to-die adhesive bonding process to realize a GaAs-on-insulator platform incorporating a p-i-n junction for charge noise suppression and Stark tuning of excitonic transitions. Resonance fluorescence measurements reveal narrow optical linewidths below 2 μeV and high single-photon purity, matching the performance of unprocessed GaAs devices. These results establish a practical route to integrate high-coherence quantum light sources with mature silicon photonics, enabling scalable quantum photonic integrated circuits |
| title | Electrical control of quantum dots in GaAs-on-insulator waveguides for coherent single-photon generation |
| topic | Optics Quantum Physics |
| url | https://arxiv.org/abs/2508.04584 |