| Autor: |
Yong-sheng ZHANG, Lin ZHANG, Jian-Jun WU |
| Jazyk: |
čínština |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Guangtongxin yanjiu, Vol 00, Iss 03, Pp 25-28 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1005-8788 |
| DOI: |
10.13756/j.gtxyj.2021.03.006&lang=zh |
| Popis: |
With the continuous improvement of single carrier transmission rate, it is great challenging to increase the transmission distance in unrepeatered link. This paper demonstrates a unrepeatered transmission of single-carrier 400 Gbit/s over 501.18 km with 78.68 dB span loss using single fiber for the first time. The technology of high-order pumps, forward and backward remote optically pumped amplifier, sub-carrier frequency-division multiplexing and ultra-low & large effective area fiber are used in this experiment. The transmission wavelength, the power of the high-order pump and the location of the remote gain unit are also optimized in this work. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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