OPTIMIZING OF THIRD HARMONIC GENERATION PARAMETERS IN KDP CRYSTAL UNDER THE HIGH FLUENCE
In third harmonic generation, it is very important to select the parameters of the generator. In this paper, we optimized the thickness of the doublers and triplers, mismatch angles and other parameters of Ⅰ/Ⅱ angle detuning and Ⅱ/Ⅱ polarization mismatch third harmonic generation schemes by numerical calculation way. We also give the tripling efficiency curves which the pulse shape of the input intensity is flat in space and time around 5.0 GW/cm 2.