title: The validity of "Odd and Even" channels for testing all-optical OFDM and Nyquist WDM long-haul fiber systems.
abstract: We investigate experimentally the validity of testing all-optical OFDM and Nyquist WDM systems using interleaved test channels derived from only two data sources. These "odd and even" channels are insufficiently decorrelated, so experiments underestimate the inter-carrier interference (ICI). Additionally, numerical simulations demonstrate that using odd and even channels generates stronger nonlinear distortions during transmission, causing an unrealistically large penalty in the nonlinearity-limited region.
authors.affiliation: Dept Electrical & Computer Systems Engineering, Monash University, Clayton, VIC 3800, Australia.
authors.forename: Liang B
authors.initials: LB
authors.lastname: Du
authors.forename: Arthur J
authors.initials: AJ
authors.lastname: Lowery