Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core Fiber
In this paper, we experimentally demonstrate a net bit rate of 261.7 Gbit/s in a seven-core transmission system with a Kramers–Kronig (KK) receiver. The 10 GBaud 16-level quadrature amplitude modulation (QAM) signal is transmitted over a 2.5 km seven-core fiber, and the relationship between carrier-...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/10/9/1017 |
| _version_ | 1827724320065978368 |
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| author | Feng Tian Tianze Wu Chao Yu Chuxuan Wang Mohai Yue Ran Gao Qi Zhang Zhipei Li Qinghua Tian Fu Wang Xiangjun Xin |
| author_facet | Feng Tian Tianze Wu Chao Yu Chuxuan Wang Mohai Yue Ran Gao Qi Zhang Zhipei Li Qinghua Tian Fu Wang Xiangjun Xin |
| author_sort | Feng Tian |
| collection | DOAJ |
| description | In this paper, we experimentally demonstrate a net bit rate of 261.7 Gbit/s in a seven-core transmission system with a Kramers–Kronig (KK) receiver. The 10 GBaud 16-level quadrature amplitude modulation (QAM) signal is transmitted over a 2.5 km seven-core fiber, and the relationship between carrier-to-signal power ratio, signal power, frequency spacing, and optical power is analyzed. Moreover, a multiple-input multiple-output (MIMO) Volterra equalization algorithm with crosstalk-dependent steps is proposed to compensate for inter-core crosstalk and impairments induced by other devices. Compared to the single-input single-output (SISO) Volterra equalizer, the CSPR can be reduced by 1.3 dB, and the received power gain can reach up to 0.7 dB. |
| first_indexed | 2024-03-10T22:14:06Z |
| format | Article |
| id | doaj.art-3a731866893f44e9a311e83cb621d684 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-10T22:14:06Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-3a731866893f44e9a311e83cb621d6842023-11-19T12:29:53ZengMDPI AGPhotonics2304-67322023-09-01109101710.3390/photonics10091017Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core FiberFeng Tian0Tianze Wu1Chao Yu2Chuxuan Wang3Mohai Yue4Ran Gao5Qi Zhang6Zhipei Li7Qinghua Tian8Fu Wang9Xiangjun Xin10State Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaAdvanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, ChinaChina Electronics Technology Group, Beijing 100041, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaAdvanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaAdvanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaState Key Laboratory of Information Photonics and Optical Communications, Beijing Key Laboratory of Space-Ground Interconnection and Convergence, School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, ChinaIn this paper, we experimentally demonstrate a net bit rate of 261.7 Gbit/s in a seven-core transmission system with a Kramers–Kronig (KK) receiver. The 10 GBaud 16-level quadrature amplitude modulation (QAM) signal is transmitted over a 2.5 km seven-core fiber, and the relationship between carrier-to-signal power ratio, signal power, frequency spacing, and optical power is analyzed. Moreover, a multiple-input multiple-output (MIMO) Volterra equalization algorithm with crosstalk-dependent steps is proposed to compensate for inter-core crosstalk and impairments induced by other devices. Compared to the single-input single-output (SISO) Volterra equalizer, the CSPR can be reduced by 1.3 dB, and the received power gain can reach up to 0.7 dB.https://www.mdpi.com/2304-6732/10/9/1017crosstalkKramers–Kronig receiverMIMOoptical fiber communicationseven-core transmissionVolterra equalizer |
| spellingShingle | Feng Tian Tianze Wu Chao Yu Chuxuan Wang Mohai Yue Ran Gao Qi Zhang Zhipei Li Qinghua Tian Fu Wang Xiangjun Xin Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core Fiber Photonics crosstalk Kramers–Kronig receiver MIMO optical fiber communication seven-core transmission Volterra equalizer |
| title | Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core Fiber |
| title_full | Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core Fiber |
| title_fullStr | Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core Fiber |
| title_full_unstemmed | Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core Fiber |
| title_short | Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core Fiber |
| title_sort | kramers kronig transmission with a crosstalk dependent step multiple input multiple output volterra equalizer in a seven core fiber |
| topic | crosstalk Kramers–Kronig receiver MIMO optical fiber communication seven-core transmission Volterra equalizer |
| url | https://www.mdpi.com/2304-6732/10/9/1017 |
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