高效率KNbO_3:Fe自泵浦相位共轭器

HIGH EFFICIENCY KNbO_3:Fe SELF-PUMPED PHASE CONJUGATOR

报道对KNbO_3:Fe最佳二波耦合和全内反射的自泵浦相位共轭的设计考虑,两种考虑的主要根据是利用最大电光系数γ_(42)和优化几何配置,展示了相位共轭的一系列特性,并成功地把这些非线性光学效应从514.5nm扩展到632.8nm。

The design and consideration of an optical coherent two-wave coupling and a self-pumped phase conjugator using totally internal reflection in the photorefractive KNbO_3: Fe are reported. The exceptionally large value of the electro-optical coefficient r_(42) and an optimized geometrical configuration are considered for both cases. The nature of phase conjugation of the retroreflected beam ls demonstrated. Nonlinear optical effects are extended successfully from wavelengths 514.5nm to 632.8nm.