提出一种基于液晶技术的新型WSC(波长选择交叉互连)结构设计,在传统1×N波长选择交叉的基础上通过偏振态的复用实现2×4的WSC,可减少系统组网所需的器件数量,提高系统集成度,降低组网成本。理论分析与实验证明,该新型WSC整体插损<5dB,50GHz栅格工作状态3dB带宽>40GHz,与理论结果基本吻合。 A novel structure design of WSC (wavelength selective cross-interconnection) based on liquid crystal technology is proposed. Based on the conventional 1 × N wavelength selective crossover, 2 × 4 WSC can be realized through the multiplexing of polarization states, which can reduce the need of system networking The number of devices to improve system integration and reduce networking costs. The theoretical analysis and experiments show that the new WSC has an overall insertion loss of <5dB and a 3dB bandwidth of 40GHz in the 50GHz grid working state, which is in good agreement with the theoretical results.