Abstract

We show that the upper and lower sidebands of a multiband carrier-less amplitude phase (CAP) signal fulfil the condition of phase-conjugated twin waves. Through simulation and experiments, the reduction of intrachannel and interchannel nonlinear distortions are demonstrated. The optimum launched power for 200 km transmission is improved by 2 dB in a two-channel wavelength division multiplexing (WDM) system.

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