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＜5 dB,50 GHz栅格工作状态3 dB带宽＞40 GHz,与理论结果基本吻合.

This paper presents the structural design of a novel liquid crystal technology-based Wavelength Selective Cross-Connect (WSC),which realizes 2×4 flex-grid WSC by means of polarization multiplexing on the basis of the conventional 1×N WSC,thus reducing the number of the devices required for system networking,improving the system integration level and lowering the networking cost. Theoretical analysis and experimental results verify that total insertion loss of this WSC is less than 5 dB and the 3 dB bandwidth of 50 GHz grid in operating state is greater than 40 GHz.