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报道了双掺杂Ce :Fe ,Ce :Mn ,Mn :Fe生长态LiNbO3(LN)的光谱及光折变效应二波耦合增益特性 .研究表明 ,双掺杂浓度较高时 ,生长态的LiNbO3晶体的透过率光谱范围较小 ,光折变效应二波耦合增益较低 .几种双掺杂晶体都比单掺Fe晶体的光折变效应二波耦合增益低 ,表现出较强的抗光折变特性
The spectra and the photorefractive effect of two-doped Ce: Fe, Ce: Mn and Mn: Fe LiNbO3 (LN) have been reported.The results show that when the doping concentration is high, the growth state of LiNbO3 The transmittance range of the crystal is smaller and the second-order coupling gain of the photorefractive effect is lower. Compared with the photorefractive effect of the single-doped Fe crystal, the two-wave coupling gain is lower and shows stronger resistance Photorefractive properties