Abstract

Polarization is one of the key parameters to be utilized for large capacity and high spectral-efficient optical communication systems, especially the widely deployed polarization-division-multiplexing (PDM) scheme. To break the limitation of only two orthogonal polarization states that could be used for carrying data signals over the same wavelength, we experimentally demonstrate the first transmission of three-polarization-division-multiplexed DPSK signals at a rate up to $3\times 25\mathrm{Gb}/\mathrm{s}$ over 300-km fiber link by using a single-carrier.

© 2016 Optical Society of America

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