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Influence of Channel Spacing on Ultra Long-Haul WDM Transmission of 8×112 Gb/s PS-QPSK Signals

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We experimentally investigate 112-Gb/s polarization-switched quadrature phase-shift keying signals. In ultra long-haul wavelength-division multiplexing (WDM) transmission experiments, we compare the performance of WDM channels with 1.07×symbol rate spacing and a regular 50-GHz spacing.

© 2012 Optical Society of America

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