In this Letter, the authors designed a photonic configurable logic block (pCLB) with Mach–Zehnder modulator as a universal photonic gate (UPG) using electro-optic mechanism. The UPG is capable of performing all the logical operations with the help of FPGA as a configuration controller. The functionality and its suitability is verified by forming a pCLB of ten UPGs, which finds applications in digital photonics. For the design of pCLB, traditional electronic design automation tools are used. The pCLB provides features namely scalability and modular approach, for the reconfigurable digital photonic integrated circuits. The photonic gate designed using a two-dimensional finite difference time domain approach shows a crosstalk-free operation with a negligible transmission loss of 0.18 dB and flexible switching control compared to the existing MZI-based photonic gate.

中文翻译：

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用于数字光子集成电路的光子可配置逻辑块

在这封信中，作者设计了具有以下特性的光子可配置逻辑模块（pCLB）： Mach–Zehnder调制器作为采用电光机制的通用光子门（UPG）。UPG能够借助FPGA作为配置控制器来执行所有逻辑操作。通过形成十个UPG的pCLB验证了功能及其适用性，该pCLB在数字光子学中得到了应用。对于pCLB的设计，使用传统的电子设计自动化工具。pCLB为可重配置的数字光子集成电路提供了可扩展性和模块化方法等功能。与现有技术相比，使用二维有限时域时域方法设计的光子门显示出无串扰操作，传输损耗可忽略不计0.18 dB，并且开关控制灵活 基于MZI的光子门。