Abstract

We illustrate observation and characterization of medium- and low-intensity shaped ultrashort pulses at λ=1.55 µm through single-shot geometry (multishot-average) second-harmonic generation–frequency-resolved optical gating. The pulses are shaped by amplitude filters in the Fourier plane of a compact folded shaper. Sensitivity to pulses with energies of less than 20 pJ and high dynamic range is reported for this configuration. Application of this method to the propagation of 170fs pulses through a 50-m fiber link is also illustrated.

© 1999 Optical Society of America

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