“…It is of interest to compare the parameters of a pulse described by expression (2) and the experimental data given in Ref. [5]. For Nd: YAG, we have T W 0.8 and if y = 0.05, we obtain r p ss 70 ps and <w « -20 GHz, whereas for y = 0.1, we obtain i p w 30 ps and <w«-100GHz, in agreement with Ref.…”