We demonstrate long-haul transmission of 50-Gb/s RZ and NRZ-DQPSK signals generated using an electroabsorption-based optical vector modulator. Transmission over 1650 km is achieved with less than 1.2 dB OSNR penalty relative to back-to-back performance.

© 2010 IEEE Communications Society, IEEE Photonics Society, OSA, Telcordia

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