We have performed time-resolved degenerate four-wave mixing (DFWM) experiments in 75Nb_{2}O_{5 }-20TeO_{2}-5ZnO glasses dopedby Er_{2}O_{3} at different excitation intensities and lattice temperatures. DFWM signal exhibits three peaks at high excitation i
High-speed dynamic spectrum data of transient detection has become the major means of access to transient information. However, in terms of the characteristic of spectral data excessiveness and transience in the dynamic spectral detection system, the line