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7-Tb/s Signal Transmission Over 320 km Using PDM-64QAM Modulation

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ABSTRACT:

We have transmitted a $7times1.284~{rm Tb}/{rm s}/{rm ch}$ signal over 320-km conventional single mode fiber (SMF-28) with hybrid amplifier spans of 80 km. Each terabit superchannel comprises ten Nyquist wavelength division multiplexing polarization division multiplexing 64 quadrature amplitude modulation subchannels occupying 137.5 GHz, which gives a spectral-efficiency of 7.65 b/s/Hz per superchannel. The bit error ratio of all channels after transmission over 320 km is measured smaller than $2times 10^{-2}$, the soft-decision forward error correction limit.


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7-Tb/s Signal Transmission Over 320 km Using PDM-64QAM Modulation - 4.9 out of 5 based on 24 votes

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