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• W3111032337 abstract "Optical fiber communication has become the mainstream transmission medium for access networks due to its large capacity and low loss. With the development of 5G, the rise of various social and live broadcast platforms, and the emergence of cloud computing and other applications, users' demands for bandwidth and speed have grown rapidly. Therefore, the future optical access network will develop towards large capacity, high speed, and low cost. The characteristics of optical fiber such as dispersion and non-linear effects will decrease system performance. In order to improve system performance, it is necessary to adopt high-order modulation and digital signal processing technology. In this paper, the modulation formats for large-capacity optical access are investigated, including pulse amplitude modulation (PAM), carrier-less amplitude and phase modulation(CAP), direct detection orthogonal frequency division multiplexing (DD-OFDM). The principles and research progress of the three modulation formats are discussed. At the same time, in order to further increase the system capacity and the number of users supported, large-capacity optical access technology based on space division multiplexing (SDM) are also be introduced, including multi-core fiber based PON and OAMbased PON architecture." @default.
• W3111032337 created "2020-12-21" @default.
• W3111032337 creator A5042254804 @default.
• W3111032337 date "2020-12-08" @default.
• W3111032337 modified "2023-09-25" @default.
• W3111032337 title "An investigation on large capacity optical access network" @default.
• W3111032337 doi "https://doi.org/10.1117/12.2585673" @default.
• W3111032337 hasPublicationYear "2020" @default.
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