【摘要】 研究了 Ce:KNSBN晶体在不同温度下 ,用 He- Ne激光进行光折变两波耦合特性 .测量了信号光增益随总入射光强的变化关系 ,用中间段光折变理论对实验结果进行了分析 ,得出了指数增益系数 Γs,饱和强度 Is和吸收系数 α的数值 .实验结果和理论分析符合较好更多还原

【Abstract】 Photorefractive two beam coupling in Ce:KNSBN are studied at different temperature Using He Ne Laser. The signal beam gain is measured as a function of thd total beam intensity. The experimental results are analyzed by using the intermediate stage theory. The Parameters Such as the saturation exponential gain coefficient Γ s . Saturation intensity I s and absorption coefficient α have been derived. The experimental results are in agreement with the theoretical predictions.更多还原