An all-optical pseudo-random binary sequence (PRBS) generator is designed and simulated employing micro-ring resonators (MRRs) as the core technology. The PRBS generator consists of serially connected D flip-flops realized with double-bus MRR-based switches that exploit two-photon absorption induced in a pump-probe configuration, and of a MRR-based feedback XOR gate whose design is simpler than previously reported. The expected operation is theoretically validated for 3-bit and 4-bit degree PRBS generators and can be extended to higher PRBS orders with the straightforward addition of extra MRR-based D flip-flops. The MRR critical parameters, including radius, coupling coefficient and detuning, are optimized against performance metrics through numerical simulation at 250 Gb/s. The selection of these parameters according to the derived specifications can render feasible the practical implementation of the scheme and its exploitation for all-optical signal processing purposes.

以微环谐振器（MRR）为核心技术，设计并仿真了全光伪随机二进制序列（PRBS）发生器。PRBS发生器由利用基于双总线基于MRR的开关实现的串联D触发器组成，该开关利用在泵浦探针配置中感应的双光子吸收，以及基于MRR的反馈XOR门，其设计比以前报道的要简单。 。理论上，预期的操作已针对3位和4位度的PRBS发生器进行了验证，并且可以通过直接添加额外的基于MRR的D型触发器来扩展到更高的PRBS阶数。通过250 Gb / s的数值模拟，针对性能指标优化了MRR关键参数，包括半径，耦合系数和失谐。