Integrated photonic chip for quantum key distribution
Silicon photonic technologies exploit silicon as an optical material to build a wide array of devices and systems. The flexibility, modularity, and stability of silicon photonic systems provide unprecedented opportunities for next-generation quantum key distribution (QKD) and quantum networking. Thi...
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| Format: | Thesis |
| Language: | English |
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2019
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| Online Access: | https://hdl.handle.net/10356/105274 http://hdl.handle.net/10220/47830 |
| _version_ | 1826124662780723200 |
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| author | Zhang, Gong |
| author2 | Liu Aiqun |
| author_facet | Liu Aiqun Zhang, Gong |
| author_sort | Zhang, Gong |
| collection | NTU |
| description | Silicon photonic technologies exploit silicon as an optical material to build a wide array of devices and systems. The flexibility, modularity, and stability of silicon photonic systems provide unprecedented opportunities for next-generation quantum key distribution (QKD) and quantum networking. This doctoral thesis focuses on the design, simulation, fabrication, and experiment of QKD chips based on silicon photonics. Crucial components for QKD chips are designed and fabricated, including the grating coupler, polarization beam splitter, polarization rotator, modulator, photodetector, ring resonator, and interferometer. Using these components, chip-based continuous variable quantum key distribution (CV-QKD) is demonstrated for the first time. The chip-based CV-QKD system is capable of producing a secret key rate of 9.3 kbits/s (under collective attack) at a distance of 100 km in fiber. The successful demonstration of a single chip-based QKD offers new possibilities for low-cost, scalable and portable quantum networks. |
| first_indexed | 2024-10-01T06:24:21Z |
| format | Thesis |
| id | ntu-10356/105274 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:24:21Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/1052742023-07-04T16:24:30Z Integrated photonic chip for quantum key distribution Zhang, Gong Liu Aiqun School of Electrical and Electronic Engineering A*STAR Institute of Microelectronics DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Silicon photonic technologies exploit silicon as an optical material to build a wide array of devices and systems. The flexibility, modularity, and stability of silicon photonic systems provide unprecedented opportunities for next-generation quantum key distribution (QKD) and quantum networking. This doctoral thesis focuses on the design, simulation, fabrication, and experiment of QKD chips based on silicon photonics. Crucial components for QKD chips are designed and fabricated, including the grating coupler, polarization beam splitter, polarization rotator, modulator, photodetector, ring resonator, and interferometer. Using these components, chip-based continuous variable quantum key distribution (CV-QKD) is demonstrated for the first time. The chip-based CV-QKD system is capable of producing a secret key rate of 9.3 kbits/s (under collective attack) at a distance of 100 km in fiber. The successful demonstration of a single chip-based QKD offers new possibilities for low-cost, scalable and portable quantum networks. Doctor of Philosophy 2019-03-16T14:26:37Z 2019-12-06T21:48:35Z 2019-03-16T14:26:37Z 2019-12-06T21:48:35Z 2019 Thesis Zhang, G. (2019). Integrated photonic chip for quantum key distribution. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/105274 http://hdl.handle.net/10220/47830 10.32657/10220/47830 en 243 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Zhang, Gong Integrated photonic chip for quantum key distribution |
| title | Integrated photonic chip for quantum key distribution |
| title_full | Integrated photonic chip for quantum key distribution |
| title_fullStr | Integrated photonic chip for quantum key distribution |
| title_full_unstemmed | Integrated photonic chip for quantum key distribution |
| title_short | Integrated photonic chip for quantum key distribution |
| title_sort | integrated photonic chip for quantum key distribution |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics |
| url | https://hdl.handle.net/10356/105274 http://hdl.handle.net/10220/47830 |
| work_keys_str_mv | AT zhanggong integratedphotonicchipforquantumkeydistribution |