Silicon photonics have widespread applications in optical communications, photonic sensors, and quantum information processing systems. Different photonic integrated circuits often require similar basic functional elements such as tunable filters, optical switches, wavelength de-multiplexers, optical delay lines, and polarization crosstalk unscrambling. Other optical signal processing functional elements may be needed in specific applications, for example, the differentiation with respect to time of time-varying optical signals and the implementation of very high extinction interferometers in some integrated quantum photonic circuits. Just as reconfigurable electronic processors in microelectronics have advantages in terms of ready availability and low cost from large-volume generic manufacturing and are useful for configuration into different functionalities in the form of field-programmable gate arrays, here, we show how an integrated coherent network of micro-ring resonators can be used in reconfigurable photonic processors. We demonstrate the implementation of optical filters, optical delay lines, optical space switching fabric, high extinction ratio Mach–Zehnder interferometer, and photonic differentiation in a reconfigurable network where the control of the phase in the different arms of the coherent network can determine the implemented functionality.

中文翻译：

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使用微环谐振器相干网络的多功能光子处理器

硅光子学在光通信、光子传感器和量子信息处理系统中有着广泛的应用。不同的光子集成电路通常需要相似的基本功能元件，例如可调滤波器、光开关、波长解复用器、光延迟线和偏振串扰解扰。在特定应用中可能需要其他光信号处理功能元件，例如，时变光信号的时间区分以及在一些集成量子光子电路中实现非常高的消光干涉仪。正如微电子中的可重构电子处理器在大批量通用制造的现成可用性和低成本方面具有优势，并且可用于以现场可编程门阵列的形式配置为不同的功能一样，在这里，我们展示了集成相干网络如何的微环谐振器可用于可重构光子处理器。我们演示了可重构网络中的滤光器、光延迟线、光空间交换结构、高消光比马赫-曾德干涉仪和光子微分的实现，其中相干网络不同臂中的相位控制可以确定实现的功能。我们展示了如何在可重构光子处理器中使用微环谐振器的集成相干网络。我们演示了可重构网络中的滤光器、光延迟线、光空间交换结构、高消光比马赫-曾德干涉仪和光子微分的实现，其中相干网络不同臂中的相位控制可以确定实现的功能。我们展示了如何在可重构光子处理器中使用微环谐振器的集成相干网络。我们演示了可重构网络中的滤光器、光延迟线、光空间交换结构、高消光比马赫-曾德干涉仪和光子微分的实现，其中相干网络不同臂中的相位控制可以确定实现的功能。