In order to obtain the behavior of evolution and self-deflection of two-photon separate screening-photovoltaic soliton pairs, the dynamical evolution, stability and self-deflecton of both solitons in separate dark-dark and bright-dark soliton pairs in a biased serial two-photon photorefractive crystal circuit were simulated. Under the limit conditions the optical wave has a spatial extent much less than the width of the crystal, only the dark soliton can affect the dynamical evolution and stability of the other soliton with the help of light-induced current, but the bright soliton cannot. For a bright-dark soliton pair, the deflection angle of the bright soliton decreases with the increase of the input intensity of the dark soliton.%为了研究双光子独立屏蔽光伏孤子对的演化和自偏转,对外加电场双光子光伏光折变晶体串联回路中暗-暗和明-暗独立孤子对中的两孤子的动态演化、稳定性和自偏转进行了数值研究.结果表明,在光束的空间展宽远小于晶体宽度的极限条件下,暗孤子通过光电流能影响孤子对中另一孤子的动态演化和稳定性,但明孤子不能影响另一孤子;对于明-暗孤子对,明孤子的偏转程度随暗孤子的入射强度的增加而减小.该结果为工程实现提供了可能.
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