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提出了一种双通道式多功能光环形器,在结构设计中插入了双尾纤及透镜对,实现了器件功能复用,降低了制造成本与占空比。在理论上用琼斯矩阵对光环形器的插入损耗及隔离度等性能参数进行分析,探讨了影响该双通道光环形器隔离度、插入损耗特性的因素,结果表明,双通道多功能光环形器在器件镀增透膜的基础上具有与传统单通道光隔离器相同低插入损耗和高隔离度等特性。
A dual-channel multi-function optical circulator is proposed. The double pigtails and the lens pairs are inserted into the structure design to realize the function reuse of the device and reduce the manufacturing cost and duty cycle. In theory, the Jones matrix is used to analyze the performance parameters of the optical circulator such as insertion loss and isolation, and the factors affecting the isolation and insertion loss of the optical circulator are discussed. The results show that the dual-channel multifunctional optical circulator On the basis of AR coating, the device has the same low insertion loss and high isolation as traditional single-channel optical isolators.