Crosstalk and insertion loss are the crucial determinants of ring resonated routers. A novel 2 × 2 optical switch is proposed through a combination of broadband waveguide crossing and X-shape photonic crystal ring resonators. The main goal of the proposed design is to demonstrate the switching wavelengths based on changing the refractive index and reduce the level of the crosstalk and insertion loss. The performance of the proposed structure is analyzed using two-dimensional finite difference time domain and plane-wave expansion methods. Results show that crosstalk noise and insertion loss can be significantly reduced by using optimized crossbar waveguide and novel structure with bending elimination, thereby allowing higher network scalability and better performance and utility for future many-core architectures. Maximum crosstalk and insertion loss of −37.41 and 0.3 dB are obtained at 1570.5 nm, respectively. The size of the proposed structure is 18.69 × 19.6 μm², which can be used for photonic integrated circuits design due to its compactness.

串扰和插入损耗是环形谐振路由器的关键决定因素。通过结合宽带波导交叉和X形光子晶体环形谐振器，提出了一种新颖的2×2光开关。提出的设计的主要目的是演示基于改变折射率的开关波长，并降低串扰和插入损耗的水平。利用二维时域有限差分法和平面波扩展方法对所提出结构的性能进行了分析。结果表明，通过使用优化的交叉开关波导和消除弯曲的新颖结构，可以显着降低串扰噪声和插入损耗，从而为未来的多核架构提供更高的网络可扩展性以及更好的性能和实用性。在1570.5 nm处获得的最大串扰和插入损耗分别为-37.41和0.3 dB。拟议结构的尺寸为18.69×19.6μm^{如图2所示}，由于其紧凑性，其可用于光子集成电路设计。