LOW-LOSS SPOT-SIZE TRANSFORMER BY DUAL TAPERED WAVE-GUIDES (DTW-SST)

被引：41

作者：

YAMAGUCHI, N ^{[1
]}

KOKUBUN, Y ^{[1
]}

SATO, K ^{[1
]}

机构：

[1] YOKOHAMA NATL UNIV,FAC ENGN,DIV ELECT & COMP ENGN,HODOGAYA KU,YOKOHAMA,KANAGAWA 240,JAPAN

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 1990年 / 8卷 / 04期

关键词：

D O I：

10.1109/50.50765

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：

The insertion loss of a spot-size transformer by dual tapered waveguides (DTW-SST) is extremely reduced by controlling the shape of the tapered portion. This novel spot-size transformer is easily fabricated by using a shadow mask sputtering method. We describe a method to control independently the parameters of tapered portion such as maximum tapered angle, length, and position of tapered portion with respect to the edge of the shadow mask. A large transformation ratio (5 and 1/5) and a low insertion loss (0.7 dB) are successfully obtained. © 1990 IEEE

引用

页码：587 / 594

页数：8

共 11 条

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