TE-TM MODE SPLITTER USING DIRECTIONAL COUPLING BETWEEN HETEROGENEOUS WAVE-GUIDES IN LINBO3

被引:24
作者
MARUYAMA, H [1 ]
HARUNA, M [1 ]
NISHIHARA, H [1 ]
机构
[1] OSAKA UNIV,FAC ENGN,DEPT ELECTR ENGN,OSAKA 565,JAPAN
关键词
D O I
10.1109/50.400723
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We propose and demonstrate a novel passive TE-TM mode splitter using an anomalous directional coupler consisting of Ti-diffused and annealed, proton-exchanged waveguides in LiNbO3. The extraordinary wave was successfully power-transferred to the cross output with the extinction ratio of >12 dB in both X- and Z-cut LiNbO3. The ordinary wave experienced no power transfer without any excess loss due to side-way diffusion of Ti or proton, The coupler length was only <1 mm at lambda = 0.813 mm, which was short enough for optical integration.
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页码:1550 / 1554
页数:5
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