Abstract
This chapter addresses the analysis of the fiber channel Kerr-effect-induced nonlinearities as well as the synthesis of mitigation methods for these nonlinear (NL) impairments, in the specific context of multicarrier coherent optical Orthogonal Frequency-Division Multiplexing (OFDM) transmission [1–5] (Chap. 2), which imposes a particular spectral and temporal structure on the transmitted signals. We should mention that our analysis is restricted to coherent optical OFDM multicarrier OFDM transmission, making our NL scalar treatment somewhat distinct from those pursued in Chaps. 6–8 applicable to single-carrier systems. In fact, whenever we use the term “OFDM” in this chapter, we imply coherent (rather than direct-detection) optical OFDM.
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