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Integrated waveguide/photodiodes using vertical impedance matching

 

作者: R. J. Deri,   N. Yasuoka,   M. Makiuchi,   O. Wada,   A. Kuramata,   H. Hamaguchi,   R. J. Hawkins,  

 

期刊: Applied Physics Letters  （AIP Available online 1990）
卷期: Volume 56, issue 18  

页码: 1737-1739

 

ISSN:0003-6951

 

年代: 1990

 

DOI:10.1063/1.103084

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A novel ‘‘vertical impedance matching’’ approach is demonstrated to improve absorption in evanescently coupled, integrated waveguide/photodiodes by 500% over conventional structures. Our devices exhibit both high absorption at short length (90% at 190 &mgr;m) and efficient fiber butt coupling (42%) at 1.3–1.55 &mgr;m wavelengths. Unusual transient phenomena are observed in such impedance‐matched devices and discussed theoretically.

 

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