1 February 2014 Optical OFDM transmission for long-haul, metro/access, and data center applications
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Abstract
Orthogonal frequency division multiplexing (OFDM) is a modulation technique which is now used in most new and emerging broadband wired and wireless communication systems because it is an effective solution to inter-symbol interference caused by a dispersive channel. Very recently a number of researchers have shown that OFDM is also a promising technology for optical communications. This paper gives a overview of OFDM for long-haul, metro/access and data center highlighting the aspects that are likely to be important in optical applications. To achieve good performance in optical systems OFDM must be adapted in various ways. The constraints imposed by optical channel are discussed and the new forms of optical OFDM which have been developed are outlined. The main drawbacks of OFDM are its high peak to average power ratio and its sensitivity to phase noise and frequency offset. The impairments that these cause are described and their implications for optical systems discussed.
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Anand Srivastava, "Optical OFDM transmission for long-haul, metro/access, and data center applications", Proc. SPIE 9008, Optical Metro Networks and Short-Haul Systems VI, 90080O (1 February 2014); doi: 10.1117/12.2041432; https://doi.org/10.1117/12.2041432
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