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Ultrafast gain dynamics in 1.5 &mgr;m multiple quantum well optical amplifiers

 

作者: G. Eisenstein,   J. M. Wiesenfeld,   M. Wegener,   G. Sucha,   D. S. Chemla,   S. Weiss,   G. Raybon,   U. Koren,  

 

期刊: Applied Physics Letters  （AIP Available online 1991）
卷期: Volume 58, issue 2  

页码: 158-160

 

ISSN:0003-6951

 

年代: 1991

 

DOI:10.1063/1.105237

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Following gain saturation by a short pulse, the gain recovery process in multiple quantum well optical amplifiers includes contributions from carriers occupying states with energies above the depleted states within the well, from carriers stored in the barrier layers, which serve as carrier reservoirs, and from conventional Auger recombination. Gain recovery caused by carriers from the reservoirs is rapid (7 ps) and can be made to dominate the slower (Auger) recovery process.

 

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