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Spatial soliton propagation through waveguides: rectangular and parabolic rectangular index profile

机译：通过波导的空间孤子传播：矩形和抛物线矩形折射率分布

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摘要

In this study we have investigated the spatial soliton propagation in two rectangular and parabolic rectangular index profile waveguides. Effects of maximum index variation, Δn_0, waveguide width, L and well numbers, N have been studied. We see that swing period is a function of the waveguide parameter Δn_0. As Δn_0 increases, the swing period becomes shorter. But, by increasing of waveguide width, this swing period become larger. For even well numbers except for N = 6, oscillations is not symmetric around the oscillation center. Thus, systems with well numbers N = 2 and N = 4 is not suitable for waveguide applications. By using of parabolic rectangular indices we overcome this difficulty. But, in this new system, soliton moves slower and damping of soliton oscillation occurs more rapidly.
机译：在这项研究中，我们研究了两个矩形和抛物线形矩形折射率分布波导中的空间孤子传播。已经研究了最大折射率变化Δn_0，波导宽度L和阱数N的影响。我们看到摆动周期是波导参数Δn_0的函数。随着Δn_0增加，摆动周期变短。但是，通过增加波导宽度，该摆动周期变大。对于除N = 6以外的偶数井，振荡围绕振荡中心不对称。因此，井号为N = 2和N = 4的系统不适合波导应用。通过使用抛物线矩形索引，我们克服了这一困难。但是，在这个新系统中，孤子运动较慢，并且孤子振荡的阻尼发生得更快。

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