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Multi‐gigahertz‐bandwidth intensity modulators using tunable‐electron‐density multiple quantum well waveguides

 

作者: J. E. Zucker,   K. L. Jones,   M. Wegener,   T. Y. Chang,   N. J. Sauer,   M. D. Divino,   D. S. Chemla,  

 

期刊: Applied Physics Letters  （AIP Available online 1991）
卷期: Volume 59, issue 2  

页码: 201-203

 

ISSN:0003-6951

 

年代: 1991

 

DOI:10.1063/1.105965

 

出版商: AIP

 

数据来源: AIP

 

摘要:

We report the first measurement of modulation bandwidth in electron transfer quantum well modulators. A device with 1 pF capacitance provides ≳10 dB optical modulation depth at 1.537 &mgr;m wavelength with a 3 dB electrical bandwidth of 5.7 GHz. Optical pump‐probe measurements indicate that the fundamental response time is determined by the voltage‐dependent speed of carrier escape from the well.

 

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