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We have demonstrated use of an OIF-compliant, intradyne coherent receiver to perform colorless reception. After 1000km WDM transmission, a single 100Gb/s PM-QPSK signal was detected from among 80 incident channels, with 0.5dB additional OSNR penalty.
Employing time-domain hybrid QAM and electrical and optical shaping, we successfully transmitted five 504Gbits/s PDM-32/64QAM DWDM signals at 8.4b/s/Hz net spectral efficiency (SE) over a record 12×100km reach (for WDM SE>4b/s/Hz) and one 50GHz-grid ROADM.
The development of 100 Gb/s transponder technology is progressing rapidly to meet the needs of next-generation optical/IP carrier networks. In this paper, we describe the upgrade of an installed 10 Gb/s field system to 100 Gb/s using a real-time single-carrier, coherent 100 Gb/s polarization-multiplexed quadrature-phase-shift keyed channel. Performance sufficient for error-free operation after forward-error-correction...
Employing Nyquist-pulse-shaped PDM-32QAM modulation and both pre- and post-transmission digital equalization, we demonstrate 50GHz-spaced, 8×450Gbits/s DWDM transmission over 4 100km of ultra-large-area fiber and one 50GHz-grid WSS-based ROADM at 8.37b/s/Hz spectral efficiency.
We report 8×100km transmission of five 450Gbits/s PDM-32QAM DWDM signals over ultra-large-area fiber and one 50GHz-grid WSS-based ROADM at 8.4b/s/Hz spectral efficiency, enabled by the combined use of electrical and optical spectral shaping techniques.
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