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| Title: | Chromatic dispersion mitigation using a SEFDM-based diversity technique for IM/DD long reach optical links | Authors: | Yu, BX Guo, CJ Zhang, S Zuo, TJ Liu, L Lau, APT Lu, C Zhang, H |
Issue Date: | 2019 | Source: | Optics express, 2019, v. 27, no. 26, p. 38579-38592 | Abstract: | Spectral efficient frequency division multiplexing (SEFDM) can offer a higher spectral efficiency (SE) than orthogonal frequency division multiplexing (OFDM). In this work, we propose a diversity technique based on SEFDM for beyond 100-Gb/s optical intensity modulation and direct detection (IM/DD) long reach (LR) applications. We mathematically demonstrate that the self-created inter-carrier interference of SEFDM signals can be reused to achieve a diversity gain on each sub-carrier and, in turn, improve the tolerance to power fading induced by chromatic dispersion (CD) in IM/DD LR links. Based on the proposed diversity technique, we further demonstrated a 112-Gb/s SEFDM transmission over 80-km standard single-mode fiber, using only 28-GHz bandwidth and modulation format of up to 16-QAM. Experimental results show that SEFDM with the proposed diversity technique performs robust against CD effects and outperforms the conventional OFDM with adaptive bit and power loading of the same bandwidth and data rate, which validates the superiority of the proposed SEFDM in optical IM/DD LR transmissions. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement | Publisher: | Optical Society of America | Journal: | Optics express | EISSN: | 1094-4087 | DOI: | 10.1364/OE.381267 | Rights: | © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement (https://www.osapublishing.org/library/license_v1.cfm#VOR-OA) © 2019 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved. Journal © 2019 The following publication Baoxian Yu, Changjian Guo, Sen Zhang, Tianjian Zuo, Lei Liu, Alan Pak Tao Lau, Chao Lu, and Han Zhang, "Chromatic dispersion mitigation using a SEFDM-based diversity technique for IM/DD long reach optical links," Opt. Express 27, 38579-38592 (2019) is available at https://dx.doi.org/10.1364/OE.381267 |
| Appears in Collections: | Journal/Magazine Article |
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