Room-temperature waveguide-coupled silicon single-photon avalanche diodes
Fuente:
arXiv
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| Autores principales: | , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866911764298334208 |
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| author | Govdeli, Alperen Straguzzi, John N. Yong, Zheng Lin, Yiding Luo, Xianshu Chua, Hongyao Lo, Guo-Qiang Sacher, Wesley D. Poon, Joyce K. S. |
| author_facet | Govdeli, Alperen Straguzzi, John N. Yong, Zheng Lin, Yiding Luo, Xianshu Chua, Hongyao Lo, Guo-Qiang Sacher, Wesley D. Poon, Joyce K. S. |
| contents | Single photon detection is important for a wide range of low-light applications, including quantum information processing, spectroscopy, and light detection and ranging (LiDAR). A key challenge in these applications has been to integrate single-photon detection capability into photonic circuits for the realization of complex photonic microsystems. Short-wavelength ($λ$ < 1.1 $μ$m) integrated photonics platforms that use silicon (Si) as photodetectors offer the opportunity to achieve single-photon avalanche diodes (SPADs) that operate at or near room temperature. Here, we report the first waveguide-coupled Si SPAD. The device is monolithically integrated in a Si photonic platform and operates in the visible spectrum. The device exhibited a single photon detection efficiency of > 6% for wavelengths of 488 nm and 532 nm with an excess voltage less than 20% of the breakdown voltage. The dark count rate was below 100 kHz at room temperature, with the possibility of improving by approximately 35% by reducing the temperature to -5$^{\circ}$C. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_09882 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Room-temperature waveguide-coupled silicon single-photon avalanche diodes Govdeli, Alperen Straguzzi, John N. Yong, Zheng Lin, Yiding Luo, Xianshu Chua, Hongyao Lo, Guo-Qiang Sacher, Wesley D. Poon, Joyce K. S. Optics Applied Physics Single photon detection is important for a wide range of low-light applications, including quantum information processing, spectroscopy, and light detection and ranging (LiDAR). A key challenge in these applications has been to integrate single-photon detection capability into photonic circuits for the realization of complex photonic microsystems. Short-wavelength ($λ$ < 1.1 $μ$m) integrated photonics platforms that use silicon (Si) as photodetectors offer the opportunity to achieve single-photon avalanche diodes (SPADs) that operate at or near room temperature. Here, we report the first waveguide-coupled Si SPAD. The device is monolithically integrated in a Si photonic platform and operates in the visible spectrum. The device exhibited a single photon detection efficiency of > 6% for wavelengths of 488 nm and 532 nm with an excess voltage less than 20% of the breakdown voltage. The dark count rate was below 100 kHz at room temperature, with the possibility of improving by approximately 35% by reducing the temperature to -5$^{\circ}$C. |
| title | Room-temperature waveguide-coupled silicon single-photon avalanche diodes |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2310.09882 |