AI 中文总结
研究利用集成耦合波导阵列进行光的光谱滤波和路由，通过类比哈密顿量演化与光传播，设计出仅需波长尺度调制的框架，能再现时间效应，适用于滤波，与布拉格光栅互补且不干扰其功能。
AI 中文摘要
我们证明了可以设计一个集成耦合波导阵列来同时执行光的光谱滤波和路由。我们提出的框架在与绝热捷径技术相反的 regime 中运行，但我们表明它仍然只需要对阵列参数进行平滑、缓慢和小的调制。我们的设计策略依赖于哈密顿量的时间演化与光在耦合集成波导阵列中的传播之间存在的类比，在光子学中模拟类似于电子跃迁的空间现象。有趣的是，色散在光子学中恢复了空间传播效应与波长依赖性之间的对应关系。因此，我们的框架能够完全再现诸如共振跃迁等时间效应，使其适用于滤波应用。作为一种涉及调制的设计，它与布拉格光栅（BGs）有相似之处，但它增加了一些额外的特性，使其在应用和功能方面具有互补性。首先，它通过多波导配置的无缝管理增加了路由能力。其次，我们提出的框架只需要波长尺度的调制，比 BGs 慢几个数量级。我们这里呈现的效应可能不会干扰 BGs 的几何形状和功能，甚至可以与后者结合。
英文摘要
We demonstrate that an array of integrated coupled waveguides can be designed to simultaneously perform the spectral filtering and routing of light. The framework that we present here operates in a regime opposite to the shortcut-to-adiabaticity techniques, but we show it nevertheless also only requires smooth, slow, and small, modulations of the array's parameters. Our design strategy rely on the analogy which exists between the temporal evolution of an Hamiltonian and the propagation of light in an array of coupled integrated waveguides, mimicking spatially in photonics phenomena analogue to the electronic transitions. Interestingly, the chromatic dispersion restores in photonics the correspondence between spatial propagation effect and wavelength dependence. Therefore our framework is able to fully reproduces temporal effects such as resonant transitions, making it suitable for filtering applications. As a design involving modulations, it shares similarities with Bragg-Gratings (BGs): but it adds some extra features that make it complementary in terms of applications and functionality. First it adds routing capability with the seamless management of multi-waveguide configuration. And secondly the framework we present requires only wavelength-scale modulations, order of magnitudes slower than for BGs. The effects we present here may not interfere with BGs geometry and functionality, and could even be combined with the latter.
CommentsDraft article corresponding to the ICTON2026 oral presentation
