Figure 3

Characteristics of the probe and pump pulses. (a) The spectrum of the MLFFL output through a 1-m-long PMF. (b) The spectra of the pump and probe pulses. The gray shadow denotes the conversion spectrum which is calculated by the spectrum of the pump pulse and the phase matching relation. Photons spectrally overlapped with it is efficiently up-converted. (c) The autocorrelation trace of the probe pulse dispersion-compensated by the PMDCF. (d) A temporal profile of the probe pulse reflected by a gold mirror which was replaces with the measurement sample.