Adiabatic and multimode interference couplers on silicon-on-insulator

被引：64
作者：
Solehmainen, Kimmo [1 ]
Kapulainen, Markku [1 ]
Harjanne, Mikko [1 ]
Aalto, Timo [1 ]
机构：
[1] VTT Tech Res Ctr Finland, FI-02044 Espoo, Finland
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2006年 / 18卷 / 21-24期
关键词：
integrated optics; optical device fabrication; optical planar waveguide couplers; silicon-on-insulator (SOI) technology;
D O I：
10.1109/LPT.2006.885305
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：
Adiabatic and multimode interference (MMI) 3-dB couplers based on silicon-on-insulator rib waveguides were fabricated and measured. For testing purposes, pairs of identical couplers were cascaded to form Mach-Zehnder interferometers. The adiabatic couplers showed excess on-chip loss of similar to 0.5 dB, extinction ratio (ER) of 15-20 dB, and a wide spectral range. The MMI couplers processed on the same wafer showed similar loss per coupler, higher ER, and limited spectral characteristics.
引用
收藏
页码：2287 / 2289
页数：3
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