Controlling light tunneling by adiabatic passage in two modulated nonlinear waveguides
Controlling light tunneling by adiabatic passage in two modulated nonlinear waveguides
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通过两个调制非线性波导中的绝热通道控制光隧道
DOI：
10.1016/j.rinp.2019.102792
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发表时间：
2019-12
影响因子：
5.3
通讯作者：
Yu Xiaoguang
中科院分区：
文献类型：
--
作者：
Cui Jin;Yang Baiyuan;Luo Xiaobing;Li Lei;Yu Xiaoguang
理论上研究了光在两个耦合非线性波导中的传输，两个波导之间具有一定的静态传输常数失谐量，线性折射率沿传输方向沿着调制。通过缓慢地改变调制的幅度，当等量的光被发射到每个波导中时，我们将光引导到期望的输出波导。我们发现，根据两个波导之间静态传播常数失配（失调）的符号，发射的光可以完全切换到任何一个波导。此外，我们数值研究了一般输入和调制幅度的光开关的性能，并表明输出光的本地化是强大的对小到中等的变化，最终的调制幅度，相位差和输入场之间的两个波导的强度分布。更重要的是，根据所提出的方案的原理，我们能够在极低的输入功率下将输出光转向目标波导。在理论上，我们的发现可以定性地解释通过绝热导航的所谓的非线性Floquet状态。
We theoretically investigate light propagation in two coupled nonlinear waveguides with a certain static propagation constant detuning between two waveguides and with the linear refractive index modulated along the propagation direction. By slowly varying the amplitude of modulation, we steer the light to the desired output waveguide when equal amounts of lights are launched into each waveguide. We reveal that depending on the sign of the static propagation constant mismatch (detuning) between two waveguides, the launched light can be completely switched to either of waveguides. Additionally, we numerically examine the performances of light switching for general inputs and modulation amplitudes, and show that the localization of output light is robust against small to moderate variations in the final modulation amplitude, phase difference and intensity distribution of input field between two waveguides. More importantly, according to the principle of the proposed scheme, we are capable of steering the output light to the targeted waveguide at extremely low input power. In theory, our findings can be explained qualitatively by means of adiabatic navigation of the so-called nonlinear Floquet states.
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影响因子：
3.8
作者：
A. Barak;Y. Lamhot;L. Friedland;M. Segev
通讯作者：
A. Barak;Y. Lamhot;L. Friedland;M. Segev
影响因子：
3.8
作者：
I. Garanovich;A. Sukhorukov;Y. Kivshar
通讯作者：
I. Garanovich;A. Sukhorukov;Y. Kivshar
影响因子：
8.6
作者：
A. Barak;Y. Lamhot;L. Friedland;M. Segev
通讯作者：
A. Barak;Y. Lamhot;L. Friedland;M. Segev
影响因子：
3.7
作者：
S. Longhi;G. Valle;M. Ornigotti;P. Laporta
通讯作者：
S. Longhi;G. Valle;M. Ornigotti;P. Laporta
DOI：
10.1007/bf01313554
发表时间：
1991-06
期刊：
Zeitschrift für Physik B Condensed Matter
影响因子：
--
作者：
F. Grossmann;P. Jung;T. Dittrich;P. Hänggi
通讯作者：
F. Grossmann;P. Jung;T. Dittrich;P. Hänggi