Wehaverecentlywitnessedadramaticsurgeofinterestinorthogonalfrequency-divisionmultiplexing(OFDM)fromtheopticalcommunicationscommunity.Thisisevidencedbyanincreaseinthenumberofpublications,andmanyeye-catching“hero”experimentaldemonstrationsofOFDMtechnologyinawidespectrumofapplications.Oneof