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Coherent 40 Gb/s Transmission with High Spectral Efficiency Over Transpacific Distance
Coherent 40 Gb/s Transmission High Spectral Efficiency
2015/5/20
We experimentally study the reach of coherent 40 Gb/s PDM RZ QPSK transmission at several spectral efficiencies. Transpacific transmission distance at 3.2 bits/s/Hz and record SE-distance product at 2...
100G Transoceanic Length Transmission with High Spectral Efficiency Using Bandwidth Constrained PDM-QPSK
100G Transoceanic Length Transmission High Spectral Efficiency Bandwidth Constrained PDM-QPSK
2015/5/20
We review our recent 100G, high spectral efficiency, transmission experiments over transoceanic and regional distances. Transmitter pre-filtering together with a MAP detection algorithm can significan...
Ultra-High-Spectral-Efficiency Transmission
Fiber optics links subsystems Modulation Optical communications
2015/6/10
We discuss the generation, transmission, and coherent detection of 14-Gbaud polarization-division multiplexed, 16-ary quadrature-amplitude-modulation (16-QAM) signals (112-Gb/s line rate). We attain 6...
High Spectral Efficiency Phase and Quadrature Amplitude Modulation for Optical Fiber Transmission–Configurations, Trends, and Reach
High Spectral Efficiency Phase Quadrature Amplitude Modulation Optical Fiber Transmission–Configurations
2015/7/16
Catering to the current interest in high-order modulation formats, this paper discusses possible transmitter configurations and receiver concepts. Moreover, the major trends in system performance are ...
Interleaving OFDM Signals for Multiple Access with Optical Routing Capability and High Spectral Efficiency
Interleaving OFDM Signals Multiple Acces Optical Routing Capability High Spectral Efficiency
2015/7/16
We propose interleaving of OFDM signals as a scheme for multiple access. By filtering of subbands a routing function is realised. The concept is demonstrated by transmission over 400km SSMF with spect...
Coherent OFDM Transmission with High Spectral Efficiency
Coherent OFDM Transmission High Spectral Efficiency
2015/7/14
Coherent OFDM is promising for DWDM transmission with higher spectral efficiency and enables a demonstration of the highest spectral efficiency of 7.0 bit/s/Hz. Optical OFDM technologies to increase a...
10,000 km 21.4Gb/s WDM APS-DPSK With High Spectral Efficiency for Ultra-Long-Haul Submarine Upgrades
WDM APS-DPSK High Spectral Efficiency Ultra-Long-Haul Submarine Upgrades
2015/7/30
21.4Gb/s APS-DPSK transmission over 10,000km has been achieved over legacy submarine fibre demonstrating that upgrades to transpacific links are possible at double the spectral efficiency of previous ...