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Transmission capacities of 34.9Tb/s over 6375 km based on Gaussian-like DP-64APSK and 33.3 Tb/s over 6800 km using DP-32QAM are demonstrated using hybrid spans with quasi-single-mode fiber. Nonlinear compensation enables 8.3 b/s/Hz spectral efficiency.
We report the transmission of 3×112-Gb/s DP-16QAM at 20 GHz channel spacing over 35×80-km spans of ultra-large effective area fiber (ULAF), with interchannel nonlinearity compensation at a coherent receiver.
We demonstrate a four-wave-mixing-based wavelength converter suitable for coherent optical transmission at 100 Gb/s/λ and beyond that uses phase-diversity and nonconstant amplitude modulation formats. Our setup consists of 2 m of bismuth oxide-based nonlinear fiber and two copolarized external cavity pump lasers. We demonstrate wavelength conversion of 112-Gb/s polarization-multiplexed return-to-zero...
We designed and built a novel all-optical re-timing, re-amplifying, and re-shaping (3R) regeneration system based on terahertz optical asymmetric demultiplexers (TOADs) developed in our laboratory. The system is capable of parallel processing multiple wavelengths, a feature which will significantly improve the scalability of current wavelength division multiplexing (WDM) networks. Performance against...
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