The validity of “Odd and Even” channels for testing all-optical OFDM and Nyquist WDM long-haul fiber systems | Zendy

Liang B. Du | Zendy; Arthur J. Lowery | Zendy

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The validity of “Odd and Even” channels for testing all-optical OFDM and Nyquist WDM long-haul fiber systems

Author(s) -

Liang B. Du,

Arthur J. Lowery

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.00b445

Subject(s) - orthogonal frequency division multiplexing , wavelength division multiplexing , optics , nyquist–shannon sampling theorem , interference (communication) , nonlinear system , transmission (telecommunications) , physics , optical fiber , computer science , telecommunications , electronic engineering , channel (broadcasting) , engineering , wavelength , quantum mechanics

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.

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