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利用行波变换法,推导出有正偏压光折变晶体中小振幅光波的行波正、负孤子解,证明在有正偏压光折变晶体中存在着正、负行波孤子;研究行波正、负孤子在光折变晶体中的传播,同已报道的稳态光折变空间孤子相比,它们具有不同的特性,行波正、负孤子在晶体中都表现为亮孤子,其幅度和宽度不变,传播中沿着直线的轨迹偏转,调整系统参数可以任意控制偏转角度.
Using the traveling wave transform method, the positive and negative solitons of traveling wave with small amplitude light waves in the positively-biased photorefractive crystal are deduced. It is proved that there are positive and negative traveling wave solitons in the positively-biased photorefractive crystal. Wave positive and negative solitons propagate in photorefractive crystals, which have different characteristics compared with the reported steady-state photorefractive spatial solitons. The traveling wave positive and negative solitons show bright solitons in the crystal Amplitude and width of the same, spread along the trajectory of a straight line deflection, adjust the system parameters can be controlled deflection angle.