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. 2014 Oct 16;5:5163. doi: 10.1038/ncomms6163

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(a) Optical sampling oscilloscope (500-GHz measurement bandwidth) time trace of pulse trains at the dispersive fibre output before passive amplification (dashed blue, with the phase modulator turned off) and after passive amplification (solid red, with the phase modulator turned on) for the desired amplification factors of m=2, 5, 15 and 27. Experimental passive gain is measured as 2, 4.92, 14.4 and 20.2, respectively, on the optical sampling oscilloscope. (b) Passive amplification of an arbitrary waveform demonstrating the insensitivity of the Talbot method to temporal signal shape.