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vector dark solitons 矢量暗孤子
vector dark soliton 矢量暗孤子
We compare dark solitons with bright solitons,the shifts of dark is smaller in same condition. 文中还将亮狐子与暗孤子进行比较，证明了相同条件下，暗孤子比亮孤子所受的影响更小。
In this paper, a new method of dark soliton transmission control by means of modulated Raman pump is presented. 一种新的暗孤子传输控制方法，调制拉曼泵浦被用来控制暗孤子的传输。
The results show that the motion of dark soliton is periodical,and the interaction between two dark solitons exhibits to collide each other periodically. 另外,我们还讨论暗孤子在抛物势阱中的相互作用,结果表明:暗孤子在抛物势阱中的相互作用呈周期性的弹性碰撞,并且随着孤子间隔的减小,周期碰撞的振幅越来越小,直到两个暗孤子合而为一;
And the smaller the initial separation between two dark solitons is, the larger the difference between numerical simulation results and formula calculation results is. 但是,数值模拟结果显示,两孤子的初始间距越小,由经验公式计算结果所带来的误差就越大。
Employing of Fabry-Perot filters matched with optical fiber amplifiers can eliminate the noise and support long-distance stational propagation of dark solitons. 与光纤放大器配合使用法布里-珀罗滤波器,可以消除这种噪声,有利于暗孤子的长距离稳定传播。
The result shows that there is repulsive forces between two incoherent dark solitons,and the high order dispersion effect decreases the strength of the mutual interaction. 结果表明:在两个非相干暗孤子之间存在排斥力,并且高阶色散效应减弱了非相干暗孤子之间的相互作用。
It is found that even a small walkoff between the compressed bright pulse and the dark soliton can exert non ignorable influence on the bright pulse compression. 作者发现，即使暗孤子与被压缩脉冲的中心波长相差很小，离散效应对脉冲压缩的影响也很大。
The results show that changing the input amplitude of the dark soliton can adjust the spatial shift of the center of the bright soliton effectively and accurately. 结果表明，改变暗孤子的入射强度能够有效而准确的控制明孤子在晶体中传播时中心的偏转量。
The interaction between femtosecond dark solitons is similar to that of the picosecond dark solitons.They are more stable than the bright solitons and have only little repulsive force between them. 飞秒暗孤子间的相互作用与皮秒暗孤子基本相同，它们比亮孤子更加稳定，只有微小的排斥作用，同样也不具有周期性。
But it is also found that the smaller the initial separation between two dark solitons is, the larger the difference between numerical simulation results and formula calculation results is. 但我们又发现，两孤子的初始间距越小，由经验公式计算的结果与数值计算结果的差距也越大。
Further,we study the influence of the controllable self-steepening effect and the second-order nonlinear dispersion on the formation and propagation of dark solitons in metamaterials. 利用一种扩展的双曲函数级数方法求解超常介质中的传输方程,得到了各种不同情形下的暗孤子解,分析了可控自陡效应和二阶非线性色散效应对孤子形成和传输特性的影响。
The paper conclude some major factors which influence the dark soliton transmission system, such as initial phase, random dispersion, stochastic gain variation, intrapulse Raman scattering and time jitters in arrival. 对影响暗孤子传输系统的一些主要因素,如初相位的影响、机色散的影响、益随机变化的影响、脉冲拉曼散射效应的影响进行了总结性的探讨,并发现在许多情况下,引入非线性增益能够有效地抑制暗孤子的时间抖动。
The solution for NLS equation in normal dispersion has been gotten,including chirped and nonlinear saturation medium effect,the solution for the influence of dark soliton by chirped and nonlinear saturation medium effect is discussed in detail. 运用行波法求解正常色散区含频率啁啾和介质非线性饱和效应的NLS方程;并由得到的孤子解讨论了啁啾和介质非线性饱和效应对暗孤子传输特性的影响.
The exact bright and dark soliton solutions of the nonlinear Schrodinger equation with two-photon absortion and with bandlimited optical gain, respectively, are given with the travelling wave method. 用行波方法给出了含有增益色散项和双光子吸收项的非线性Schrodinger方程的皮秒严格亮基孤子解和严格暗基孤子解，以及严格暗基孤子解存在的条件；
However, in the limit of the spatial extent of the optical wave being much less than the width of the crystal, the dark soliton can affect the other one whereas the bright soliton cannot. 当入射光束的空间展宽尺寸远小于晶体尺寸时，孤子对中的暗孤子可以影响到另一个孤子，明孤子则不能。
I groped for the light switch in the dark room. 我在黑暗的房间里摸索着找电灯开关。
We started early in order to arrive before dark. 为了在天黑前到达，我们很早就动身了。
Her sublimate future husband will be tall, dark, and handsome. 她理想化的未来丈夫将是身材高大，皮肤浅黑，相貌英俊。