Noise suppression in the co-propagation of quantum signals and classical optical signals
At present,the technologies of device and system required for the fiber-based point-to-point quantum key distribution (QKD) are gradually becoming mature and showing the trend of commercial application.Therefore,how to multiplex quantum signals and classical optical signals in a single fiber to grea...
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| Format: | Article |
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Beijing Xintong Media Co., Ltd
2018-09-01
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| Series: | Dianxin kexue |
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| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2018257/ |
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| author | Yongmei SUN Jianing NIU Yuefeng JI |
| author_facet | Yongmei SUN Jianing NIU Yuefeng JI |
| author_sort | Yongmei SUN |
| collection | DOAJ |
| description | At present,the technologies of device and system required for the fiber-based point-to-point quantum key distribution (QKD) are gradually becoming mature and showing the trend of commercial application.Therefore,how to multiplex quantum signals and classical optical signals in a single fiber to greatly increase the capacity and save fiber resources has been becoming one of the hotspots of academia in recent years.The noise impairments in the co-propagation of quantum signals and classical optical signals over a single fiber were mainly studied.Firstly,the influences of the main noises,four-wave mixing (FWM) and Raman scattering on the quantum channels were analyzed.Next,an unequal-frequency-spacing-based FWM noise suppression algorithm and a wavelength assignment algorithm for joint suppression of FWM and Raman scattering were proposed for different application scenarios with different channel space and transmission distance.Finally,the superiorities of the proposed algorithms were verified through numerical simulations.The research results provide feasible noise suppression schemes for different application scenarios in the future. |
| format | Article |
| id | doaj-art-7762eacfcda5454ca9bab890b1a2aa0e |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2018-09-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-7762eacfcda5454ca9bab890b1a2aa0e2025-01-15T03:04:13ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012018-09-0134374759594217Noise suppression in the co-propagation of quantum signals and classical optical signalsYongmei SUNJianing NIUYuefeng JIAt present,the technologies of device and system required for the fiber-based point-to-point quantum key distribution (QKD) are gradually becoming mature and showing the trend of commercial application.Therefore,how to multiplex quantum signals and classical optical signals in a single fiber to greatly increase the capacity and save fiber resources has been becoming one of the hotspots of academia in recent years.The noise impairments in the co-propagation of quantum signals and classical optical signals over a single fiber were mainly studied.Firstly,the influences of the main noises,four-wave mixing (FWM) and Raman scattering on the quantum channels were analyzed.Next,an unequal-frequency-spacing-based FWM noise suppression algorithm and a wavelength assignment algorithm for joint suppression of FWM and Raman scattering were proposed for different application scenarios with different channel space and transmission distance.Finally,the superiorities of the proposed algorithms were verified through numerical simulations.The research results provide feasible noise suppression schemes for different application scenarios in the future.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2018257/quantum key distributionco-propagationfour-wave mixingRaman scatteringnoise suppressionwavelength assignment |
| spellingShingle | Yongmei SUN Jianing NIU Yuefeng JI Noise suppression in the co-propagation of quantum signals and classical optical signals Dianxin kexue quantum key distribution co-propagation four-wave mixing Raman scattering noise suppression wavelength assignment |
| title | Noise suppression in the co-propagation of quantum signals and classical optical signals |
| title_full | Noise suppression in the co-propagation of quantum signals and classical optical signals |
| title_fullStr | Noise suppression in the co-propagation of quantum signals and classical optical signals |
| title_full_unstemmed | Noise suppression in the co-propagation of quantum signals and classical optical signals |
| title_short | Noise suppression in the co-propagation of quantum signals and classical optical signals |
| title_sort | noise suppression in the co propagation of quantum signals and classical optical signals |
| topic | quantum key distribution co-propagation four-wave mixing Raman scattering noise suppression wavelength assignment |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2018257/ |
| work_keys_str_mv | AT yongmeisun noisesuppressioninthecopropagationofquantumsignalsandclassicalopticalsignals AT jianingniu noisesuppressioninthecopropagationofquantumsignalsandclassicalopticalsignals AT yuefengji noisesuppressioninthecopropagationofquantumsignalsandclassicalopticalsignals |