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We describe an optical transmitter, based on field programmable gate arrays, carrying out real-time DSP at 21.4 GSa/s. We implemented electronic predistortion at 10.7 Gb/s, and 8.35 Gb/s optical orthogonal frequency division multiplexed (OFDM) signal generation.
A 10.7 Gb/s electronic predistortion transmitter using FPGA based real-time 2 Sa/bit digital signal processing and experimental results demonstrating 800 km transmission over uncompensated SSMF are described.
We review recent work on electronic dispersion precompensation, and present the results of simulations investigating the compensation of chromatic dispersion and intra-channel fibre nonlinearity in 10 Gb/s systems using a programmable look-up table and linear finite impulse response filters
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