Scalable analysis for arbitrary photonic integrated waveguide meshes
Scalable analysis for arbitrary photonic integrated waveguide meshes
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DOI：
10.1364/optica.6.000019
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发表时间：
2019-01-20
期刊：
影响因子：
10.4
通讯作者：
Capmany, Jose
中科院分区：
文献类型：
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作者：
Perez, Daniel;Capmany, Jose
集成光学中采用的不同材料平台的制造工艺的进步正在为实现复杂程度不断增加的电路开辟道路。除了更传统的专用光子电路范例之外，可编程多功能光子（PMP）方法是受类似方法启发的横向概念，这些方法已经在其他技术领域中采用。例如，在电子学中，与专用集成电路相比，现场可编程门阵列器件能够实现灵活得多的通用操作。在光子学中，PMP概念通过二维（2D）波导网格实现，对于该二维（2D）波导网格，可能的输入/输出端口的数量快速建立，并且此外，内部信号流路径使得传递函数的计算成为棘手的问题。在这里，我们报告了一个可扩展的方法的基础上，数学归纳法，允许一个获得的散射矩阵的任何二维集成光子波导网状电路组成的任意数量的细胞，这是很容易编程。据我们所知，这是第一份此类报告，我们的研究结果为解开这一重要的设计瓶颈开辟了道路。(C)根据OSA开放获取出版协议的条款，2019年美国光学学会
The advances in fabrication processes in different material platforms employed in integrated optics are opening the path towards the implementation of circuits with increasing degrees of complexity. In addition to the more conventional application specific photonic circuit paradigm, the programmable multifunctional photonics (PMP) approach is a transversal concept inspired by similar approaches, which are already employed in other technology fields. For instance, in electronics, field programmable gate array devices enable a much more flexible universal operation as compared to application specific integrated circuits. In photonics, the PMP concept is enabled by two-dimensional (2D) waveguide meshes for which the number of possible input/outputs ports quickly builds up, and, furthermore, internal signal flow paths make the computation of transfer functions an intractable problem. Here we report a scalable method based on mathematical induction that allows one to obtain the scattering matrix of any 2D integrated photonic waveguide mesh circuit composed of an arbitrary number of cells and that is easily programmable. To our knowledge this is the first report of the kind, and our results open the path to unblocking this important design bottleneck. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement