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Implementation of a high speed time resolved error detector utilising a high speed FPGA

We demonstrate a time-resolved bit error rate detector utilising a field programmable gate array. The proposed detector offers 93 ps resolution operating at 10.7 Gb/s and allows for all the data received to contribute to the measurement allowing low bit error rates to be measured at high speed. Via synchronisation of both the detector and a high speed scope, the bit error rate and the corresponding individual eyes are identified. The operation of the detector is demonstrated by characterising a fast switching tuneable laser.