Side-mode suppression of optical add and drop multiplexer utilizing vertically coupled InGaAsP waveguides

被引：1

作者：

Horita, M ^{[1
]}

Tanaka, S ^{[1
]}

Matsushima, Y ^{[1
]}

机构：

[1] Kokusai Denshin Denwa Co Ltd, Res & Dev Labs, Kamifukuoka, Saitama 3568502, Japan

来源：

1998 INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE AND RELATED MATERIALS - CONFERENCE PROCEEDINGS | 1998年

关键词：

D O I：

10.1109/ICIPRM.1998.712391

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：

A sidemode suppression of a vertically and contra-directionally coupled semiconductor waveguide type optical add and drop multiplexer is investigated theoretically and experimentally, by introducing a window function to a grating width. Grating configuration dependence of device characteristics was numerically calculated for a linearly changing grating width, It was found that the sidemode suppression ratio (SMSR) could be improved to be more than 30 dB even by the simple grating structure. SMSR of 18 dB was obtained in a fabricated device, for which the grating was trimmed by a laser beam direct drawing method.

引用

页码：22 / 25

页数：4