A novel waveform recovery technique for an active optical pulse replicator for pulse measurement

We propose a novel method to compensate the nonlinear distortion from an optical pulse replicator based on an active optical fiber loop. It could be used to faithfully recover the input optical pulse shape from the sampled results of the replicated pulse train, despite of the distortion in the loop. Thus, the replicator could be applied to the measurement of optical pulses for optical fiber communication applications. Our proposed post-processing technique is based on modelling the nonlinear amplification behaviour of the optical amplifier in the loop. The methodology of our technique is described in detail, as well as the simulated recovered results using the proposed algorithm.