Evaluation of Second Order Nonlinearity in Periodically Poled KTiOPO4 Crystal Using Boyd and Kleinman Theory
نویسنده
چکیده
The effective nonlinearity ENL of periodically poled KTiOPO4 crystal is precisely measured with SHG experiment at various focusing conditions. The result shows the optimum focusing condition which maximizes the ENL at focusing parameter ξ at around 2.8 and is consistent with Boyd and Kleinman theory. The analysis based on the theory shows the nonlinear optical coefficient d33 of 17.5 [pm/V].
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