1.2-GHz Balanced Homodyne Detector for Continuous-Variable Quantum Information Technology
Balanced homodyne detector (BHD) that can measure the field quadratures of coherent states has been widely used in a range of quantum information technologies. Generally, the BHD tends to suffer from narrow bands and an expanding bandwidth behavior usually traps into a compromise with the gain, elec...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8444971/ |
| _version_ | 1818458001369989120 |
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| author | Xiaoxiong Zhang Yichen Zhang Zhengyu Li Song Yu Hong Guo |
| author_facet | Xiaoxiong Zhang Yichen Zhang Zhengyu Li Song Yu Hong Guo |
| author_sort | Xiaoxiong Zhang |
| collection | DOAJ |
| description | Balanced homodyne detector (BHD) that can measure the field quadratures of coherent states has been widely used in a range of quantum information technologies. Generally, the BHD tends to suffer from narrow bands and an expanding bandwidth behavior usually traps into a compromise with the gain, electronic noise, and quantum to classical noise ratio, etc. In this paper, we design and construct a wideband BHD based on radio frequency and integrated circuit technology. Our BHD shows bandwidth behavior up to 1.2 GHz and its quantum to classical noise ratio is around 18 dB. Simultaneously, the BHD has a linear performance with a gain of 4.86 k and its common mode rejection ratio has also been tested as 57.9 dB. With this BHD, the secret key rate of continuous-variable quantum key distribution system has a potential to achieve 66.55 Mb/s and 2.87 Mb/s, respectively, at the transmission distance of 10 and 45 km. Besides, with this BHD, the generation rate of quantum random number generator could reach up to 6.53 Gb/s. |
| first_indexed | 2024-12-14T22:51:31Z |
| format | Article |
| id | doaj.art-c68b5811e38649eab74dd610bfc8cd79 |
| institution | Directory Open Access Journal |
| issn | 1943-0655 |
| language | English |
| last_indexed | 2024-12-14T22:51:31Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj.art-c68b5811e38649eab74dd610bfc8cd792022-12-21T22:44:43ZengIEEEIEEE Photonics Journal1943-06552018-01-0110511010.1109/JPHOT.2018.286651484449711.2-GHz Balanced Homodyne Detector for Continuous-Variable Quantum Information TechnologyXiaoxiong Zhang0https://orcid.org/0000-0002-8801-8162Yichen Zhang1Zhengyu Li2Song Yu3Hong Guo4State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaState Key Laboratory of Advanced Optical Communications Systems and Networks, School of Electronics Engineering and Computer Science, Center for Quantum Information Technology, Center for Computational Science and Engineering, Peking University, Beijing, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing, ChinaState Key Laboratory of Advanced Optical Communications Systems and Networks, School of Electronics Engineering and Computer Science, Center for Quantum Information Technology, Center for Computational Science and Engineering, Peking University, Beijing, ChinaBalanced homodyne detector (BHD) that can measure the field quadratures of coherent states has been widely used in a range of quantum information technologies. Generally, the BHD tends to suffer from narrow bands and an expanding bandwidth behavior usually traps into a compromise with the gain, electronic noise, and quantum to classical noise ratio, etc. In this paper, we design and construct a wideband BHD based on radio frequency and integrated circuit technology. Our BHD shows bandwidth behavior up to 1.2 GHz and its quantum to classical noise ratio is around 18 dB. Simultaneously, the BHD has a linear performance with a gain of 4.86 k and its common mode rejection ratio has also been tested as 57.9 dB. With this BHD, the secret key rate of continuous-variable quantum key distribution system has a potential to achieve 66.55 Mb/s and 2.87 Mb/s, respectively, at the transmission distance of 10 and 45 km. Besides, with this BHD, the generation rate of quantum random number generator could reach up to 6.53 Gb/s.https://ieeexplore.ieee.org/document/8444971/Balanced homodyne detectorbandwidthquantum to classical noise ratiocommon mode rejection ratiocontinuous-variable quantum key distributionquantum random number generator |
| spellingShingle | Xiaoxiong Zhang Yichen Zhang Zhengyu Li Song Yu Hong Guo 1.2-GHz Balanced Homodyne Detector for Continuous-Variable Quantum Information Technology IEEE Photonics Journal Balanced homodyne detector bandwidth quantum to classical noise ratio common mode rejection ratio continuous-variable quantum key distribution quantum random number generator |
| title | 1.2-GHz Balanced Homodyne Detector for Continuous-Variable Quantum Information Technology |
| title_full | 1.2-GHz Balanced Homodyne Detector for Continuous-Variable Quantum Information Technology |
| title_fullStr | 1.2-GHz Balanced Homodyne Detector for Continuous-Variable Quantum Information Technology |
| title_full_unstemmed | 1.2-GHz Balanced Homodyne Detector for Continuous-Variable Quantum Information Technology |
| title_short | 1.2-GHz Balanced Homodyne Detector for Continuous-Variable Quantum Information Technology |
| title_sort | 1 2 ghz balanced homodyne detector for continuous variable quantum information technology |
| topic | Balanced homodyne detector bandwidth quantum to classical noise ratio common mode rejection ratio continuous-variable quantum key distribution quantum random number generator |
| url | https://ieeexplore.ieee.org/document/8444971/ |
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