OPTIMAL LAYER STRUCTURE AT QUASI-PHASE-MATCHED INTRACAVITY OF THE SECOND HARMONIC GENERATION

Intracavity conversion of frequency is the most efficient way of frequency conversion. At intracavity conversion phase changes of interacting waves within one and the same cavity will strongly influence the conversion efficiency [1-5]. Therefore, it is expedient to carry out the investigations of quasi-phase matched intracavity interaction [6] in the constant-intensity approximation [7] taking into regard the changes of all interacting waves in contrast to constant-field approximation.