Improved performance of a silicon-on-insulator-based multimode interference coupler by using taper structures

被引：30

作者：

Shi, YC ^{[1
]}

Dai, DX

He, SL

机构：

[1] Royal Inst Technol, Joint Res Ctr Photon, State Key Lab Modern Opt Instrumentat, Ctr Opt & Electromagnet Res, S-10044 Stockholm, Sweden

[2] Zhejiang Univ, Hangzhou 310027, Peoples R China

[3] Royal Inst Technol, Div Electromagnet Theory, Alfven Lab, S-10044 Stockholm, Sweden

来源：

OPTICS COMMUNICATIONS | 2005年 / 253卷 / 4-6期

关键词：

multimode interference; self-imaging; modal propagation analysis; silicon on insulator; tapered structure; vertical modes;

D O I：

10.1016/j.optcom.2005.04.078

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Multimode effects in a multimode interference (MMI) coupler based on silicon-on-insulator (SOI) are analyzed. Multimode interference in the vertical direction of an SOI-based MMI device degrades the self-imaging quality. Taper structures are introduced at the junction between input/output waveguides and multimode region to suppress the excitation of the undesired vertical modes. A 1 x 4 MMI coupler of low insertion loss (0.101 dB) and small non-uniformity (0.102 dB) is designed as a numerical example. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：276 / 282

页数：7

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