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提出一种功能复用光隔离器设计方案。在传统光隔离器中加入了透镜对,两透镜间拥有一个相邻共焦面,具有空间光交叉功能,能实现功能复用光隔离器输入输出多尾纤之间的对应耦合;二者结合组成空间复用功能系统,使光隔离器具有功能复用的作用。该光隔离器的主要性能测量结果表明,所设计的1550nm双通道功能复用光隔离器两个通道的插入损耗分别为0.43dB和0.31dB,隔离度分别为43dB和40dB,两个功能隔离器之间的串扰都大于60dB,达到了隔离器需要满足的性能指标,在低插损、高隔离的基础上具有功能复用效用。
A functional multiplexing optical isolator design is proposed. In the traditional optical isolator lens pair is added, the two lenses have an adjacent confocal surface, with spatial light cross function, can realize the functional reuse optical isolator input and output multi-pigtail corresponding coupling between the two; Composition of space multiplexing function system, the optical isolator has the function of multiplexing. The main performance measurement results of the optical isolator show that the designed insertion loss of the two channels of 1550nm dual-channel multiplex optical isolator is 0.43dB and 0.31dB respectively, and the isolation is 43dB and 40dB respectively. Two functional isolators The crosstalk between them is more than 60dB, which meets the performance index that the isolator needs to meet. It has the function reuse function on the basis of low insertion loss and high isolation.