Pulse characterization and data analysis in ultrafast spectroscopy

We have studied pulse propagation through a 0.5-mm-thick plate of Nd/sup 3+/doped glass, an optical medium which has a complicated structure in the laser spectral region, by fully characterizing the input and output pulses in such methods. SHG FROG and XFROG were employed and compared with calculation by a linear theory to confirm reliability of these methods.