中文摘要：

在光电的相片的明亮空间的光 solitons 的进化和自我偏转上的温度效果折射媒介被考虑散开效果调查。数字结果证明明亮独居的横梁的进化强烈取决于水晶温度。明亮独居的横梁中心的弯曲距离在典型温度增加并且到达它的最大的价值，这也被发现，然后当温度升起并且在低、高的温度接近零，减少。有输入力量密度的最大的值和典型温度增加。明亮独居的横梁的自我偏转被一种不安技术进一步学习，并且结果被发现在对由数字方法获得了那的好同意。散开过程和黑暗发光统治在典型温度并且在更高的温度政体而且在温度的大多数价值把距离弄弯的温度依赖。散开过程将主要在发光将在更高的温度范围统治的典型温度和黑暗统治温度依赖。

英文摘要：

The temperature effects on the evolution and self-deflection of bright spatial optical solitons in photovoltaic photorefractive media were investigated by taking into account diffusion effects. The numerical results show that the evolution of the bright solitary beam depends strongly on the crystal temperature. It is also found that the bending distance of the bright solitary beam centre increases and reaches its maximum value at a characteristic temperature, and then decreases as temperature rises and approaches zero at low and high temperatures. Both the maximum value and characteristic temperature increase with the input power density. The self-deflection of bright solitary beam is further studied by a perturbation technique, and the results are found to be in good agreement with that obtained by the numerical method. The diffusion process and the dark irradiance dominate the temperature dependence of bending distance in most values of temperature besides at the characteristic temperature and in the higher temperature regime. The diffusion process will mainly dominate the temperature dependence at the characteristic temperature and the dark irradiance will dominate in the higher temperature range.