10 Channel WDM 80 Gbit/s/ch, 256 QAM Bi-Directional Coherent Transmission for a High Capacity Next-Generation Mobile Fronthaul
書誌事項
- 公開日
- 2021-03-01
- 資源種別
- journal article
- 権利情報
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- https://ieeexplore.ieee.org/Xplorehelp/downloads/license-information/IEEE.html
- DOI
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- 10.1109/jlt.2020.3034417
- 公開者
- Institute of Electrical and Electronics Engineers (IEEE)
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説明
We describe the first on-line 256 QAM digital coherent optical transmission system with an ECLD light source and DFB LD-based injection-locking, and an FPGA-based transceiver. In this system, precise optical phase control was achieved with an optical injection-locking circuit and a phase-locked loop circuit at the receiver, which helped to reduce the complexity of digital signal processing in the FPGA-based receiver. The precise polarization-demultiplexing of a 256 QAM signal was realized by using a training symbol in the FPGA. With these techniques, we successfully demonstrated the on-line detection of a QAM signal with a multiplicity as high as 256. We then present a 10 channel WDM 80 Gbit/s/ch, 256 QAM bi-directional coherent transmission as a high capacity next-generation mobile fronthaul by using the FPGA-based transmission system. We achieved error-free operations with a 14% overhead FEC for 10 km down-link (on-line) and up-link (off-line) transmissions for all channels.
収録刊行物
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- Journal of Lightwave Technology
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Journal of Lightwave Technology 39 (5), 1289-1295, 2021-03-01
Institute of Electrical and Electronics Engineers (IEEE)
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詳細情報 詳細情報について
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- CRID
- 1360572092431347712
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- ISSN
- 15582213
- 07338724
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- 資料種別
- journal article
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- データソース種別
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- Crossref
- KAKEN
- OpenAIRE
