期刊
OPTICAL FIBER TECHNOLOGY
卷 69, 期 -, 页码 -出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.yofte.2022.102849
关键词
Pulse amplitude modulation(PAM); Probabilistic shaping(PS); Multi-core fiber(MCF)
资金
- National Key Research and Devel-opment Program of China [2019YFB1803905]
- National Natural Science Foundation of China [62171022]
- Beijing Natural Science Foundation [4222009]
- Guangdong Basic and Applied Basic Research Foundation [2021B1515120057, 2020A1515111047]
This paper investigates the transmission of probabilistic shaped polarization-division-multiplexed eight-level pulse amplitude modulated (PS-PDM-PAM-8) signal over multi-core fiber (MCF) using coherent detection. A modified signal phase-based LMS (SP-LMS) algorithm is proposed to equalize both intensity-modulated and filed modulated PS PAM signals. By employing PS and MCF transmission, a total rate of 448 Gb/s is achieved and compared with traditional PDM-PAM4 signal, a 22.4 Gb/s gain in net bit rate can be achieved.
The combination of pulse amplitude modulation (PAM) and coherent detection is a promising solution for short reach transmission systems which require the transmission rate of 100 Gb/s and above. In this paper, the transmission of probabilistic shaped polarization-division-multiplexed eight-level pulse amplitude modulated (PS-PDM-PAM-8) signal over multi-core fiber (MCF) using coherent detection is investigated. A modified signal phase-based LMS (SP-LMS) algorithm is proposed to equalize both intensity-modulated and filed modulated PS PAM signals. By employing PS and MCF transmission, the total rate of 448 Gb/s is achieved and compared with traditional PDM-PAM4 signal, the PS-PDM-PAM8 can achieve a 22.4 Gb/s gain in net bit rate.
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