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利用变分法和数值模拟的方法研究了克尔型自聚焦介质平板波导中正交极化、中心重合的双光束的传输规律,得到了两光束做类孤子的“互陷”传输的条件,分析了在平板波导的线性双折射为零以及不能忽略的两种情况下“互陷”传输的特点.结果发现“互陷”传输的光束与严格意义的矢量空间孤子之间存在本质的不同.
By using the method of variational method and numerical simulation, the transmission law of orthogonal polarizations and center coincident double beams in Kerr-type self-focusing slab waveguides is studied. The characteristics of “mutual-trapped” transmission are analyzed under the condition that the linear birefringence of the slab waveguide is zero and can not be neglected. The results show that there is an essential difference between the “trapped” transmitted beam and the strict space vector soliton.