D. Shayovitz, D. Marom, H. Herrmann, W. Sohler, R. Ricken, C. Silberhorn
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High resolution time-to-space imaging of ultra-short pulses at 1.55μm by non-degenerate SFG in PPLN crystal
We demonstrate high resolution and increased efficiency background-free time-to-space conversion using spectrally resolved non-degenerate and collinear SFG in a bulk PPLN crystal. A serial-to-parallel resolution factor of 95 and a time window of 42 ps were achieved. A 60-fold increase in conversion efficiency slope compared with our previous work using a BBO crystal [5] was recorded. Finally the measured 40 GHz narrow linewidth of the output SFG signal implies the possibility to extract phase information by employing coherent detection techniques.
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