讨论了由45°非互易模变换器与45°互易模变换器构成波导型光隔离器时两者之间须满足的条件,并由此设计了一种新型的相位自补偿磁光隔离器.利用全矢量有限差分光束传输法对隔离器进行仿真,得到了插入损耗为-1·2dB,隔离度为-34dB的结果.
The intrinsic factors of magneto-optical waveguide isolator based on 45° nonreciprocal mode conversion and 45° reciprocal mode conversion are introduced. A novel phase self-compensation isolator is designed and simulated by the full-vectorial FD-BPM. The insertion loss of this isolator is -1.2dB and the isolation is -34dB.