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WDM transmission over 5600 km of ultra-large-area fiber is achieved using an 80-Gbaud all-electronically multiplexed polarization-division multiplexed quadrature phase-shift-keyed (PDM-QPSK) transmitter and off-line intradyne detection with four synchronized 120-GSamples/s, 45-GHz inputs of an oscilloscope prototype.
Summary form only given. The future high-speed optical behaviour will incorporate all-optical wavelength converters to allow information to be transferred between channels in a wavelength-division multiplexing (WDM) or optical FDM transmission system. Analogous to a space switch, wavelength switching elements must: be cascadable and provide low cross talk and high signal-to-noise ratio. Four-wave...
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