Compact variable optical attenuator based on multimode interference coupler

被引：30

作者：

Jiang, XQ ^{[1
]}

Li, X

Zhou, HF

Yang, JY

Wang, MH

Wu, YY

Ishikawa, S

机构：

[1] Zhejiang Univ, Dept Informat Sci & Elect Engn, Hangzhou 310027, Peoples R China

[2] Seikoh Giken Co Ltd, Matsudo, Chiba 2702214, Japan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2005年 / 17卷 / 11期

基金：

中国国家自然科学基金;

关键词：

integrated optics; multimode interference (MMI); polymer; thermooptic (TO) effect; variable optical attenuation;

D O I：

10.1109/LPT.2005.857238

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：

Utilizing the thermooptical effect of polymers, a compact variable optical attenuator (VOA) based on multimode interference (MMI) is demonstrated. By directly modulating in the MMI region according to overlapping imaging of MMI, variable attenuation is achieved. The device length is less than 6 mm. The experiment shows that the VOA has 25-dB attenuation at the driving power of only 7.8 mW The response time is around 3-4 ms. The polarization-dependence loss is 0.3 and 0.8 dB when the attenuation is less than 15 dB and about 20 dB, respectively.

引用

页码：2361 / 2363

页数：3

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