Coherent optical DFT-Spread OFDM transmission using orthogonal band multiplexing
AuthorYang, Q; He, Z; Yang, Z; Yu, S; Yi, X; Shieh, W
Source TitleOPTICS EXPRESS
PublisherOPTICAL SOC AMER
University of Melbourne Author/sShieh, William
AffiliationElectrical And Electronic Engineering
Document TypeJournal Article
CitationsYang, Q., He, Z., Yang, Z., Yu, S., Yi, X. & Shieh, W. (2012). Coherent optical DFT-Spread OFDM transmission using orthogonal band multiplexing. OPTICS EXPRESS, 20 (3), pp.2379-2385. https://doi.org/10.1364/OE.20.002379.
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C1 - Journal Articles Refereed
Coherent optical OFDM (CO-OFDM) combined with orthogonal band multiplexing provides a scalable and flexible solution for achieving ultra high-speed rate. Among many CO-OFDM implementations, digital Fourier transform spread (DFT-S) CO-OFDM is proposed to mitigate fiber nonlinearity in long-haul transmission. In this paper, we first illustrate the principle of DFT-S OFDM. We then experimentally evaluate the performance of coherent optical DFT-S OFDM in a band-multiplexed transmission system. Compared with conventional clipping methods, DFT-S OFDM can reduce the OFDM peak-to-average power ratio (PAPR) value without suffering from the interference of the neighboring bands. With the benefit of much reduced PAPR, we successfully demonstrate 1.45 Tb/s DFT-S OFDM over 480 km SSMF transmission.
KeywordsOptical Fibre Communications; Nonlinear Optics and Spectroscopy; Expanding Knowledge in Engineering
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