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11 ,\times, 224-Gb/s POLMUX-RZ-16QAM Transmission Over 670 km of SSMF With 50-GHz Channel Spacing

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6 Author(s)
Alfiad, M.S. ; COBRA Inst., Eindhoven Univ. of Technol., Eindhoven, Netherlands ; Kuschnerov, Maxim ; Jansen, S.L. ; Wuth, T.
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We demonstrate the generation and transmission of 11 channels with 224-Gb/s polarization-multiplexed return-to-zero 16-level quadrature amplitude modulation over 670 km of standard single-mode fiber (SSMF) with 50-GHz channel spacing and a spectral efficiency of 4.2 b/s/Hz. We report a penalty of around 4.3 dB in the performance at back-to-back in comparison to the theoretical limits, and a margin of 1 dB in Q-factor below the forward-error correction limit (assumed to be at a bit-error rate of 3.8 × 10-3) after transmission over 670 km of SSMF.

Published in:

Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 15 )