Abstract:
In this paper, a detailed theoretical analysis of the second harmonic generation (SHG) efficiency versus the polarization ratio and the crystal lengths of CsLiB$_6$O$_{10}$ (CLBO) in the phase matching using a computer simulation are presented. The efficiency of SHG has been up to 80% when the pumped radiation is of a plane wave. The efficiency is 65% and 80% as the pumped wave is of Gaussian beam in type I and type II, respectively. It is useful result that the phase matching of type II be perfectly adopted in the SHG experiment of CLBO.