Kobayashi M, Terui H, Egashira K
Appl Opt. 1978 Feb 1;17(3):486-90. doi: 10.1364/AO.17.000486.
Novel optical-waveguide mode filters, based on mode-selective coupling between nonidentical waveguides and attenuation in a lossy waveguide, are proposed and demonstrated. Both TE(0) and TM(0) mode filters were fabricated from glass compositions by rf-sputtering. For both the TE(0) and TM(0) mode filters, insertion losses were 2.1 dB and 1.1 dB, respectively, and attentuations for undesirable modes were 16.8 dB and 21.6 dB, respectively.
基于不同波导间的模式选择性耦合以及有损波导中的衰减，提出并演示了新型光波导模式滤波器。TE(0)和TM(0)模式滤波器均采用射频溅射法由玻璃成分制成。对于TE(0)和TM(0)模式滤波器，插入损耗分别为2.1 dB和1.1 dB，对不需要模式的衰减分别为16.8 dB和21.6 dB。
