Cascading enables ultrafast gain recovery dynamics of quantum dot semiconductor optical amplifiers

被引：50

作者：

Majer, Niels ^{[1
]}

Luedge, Kathy ^{[1
]}

Schoell, Eckehard ^{[1
]}

机构：

[1] Tech Univ Berlin, Inst Theoret Phys, D-10623 Berlin, Germany

来源：

PHYSICAL REVIEW B | 2010年 / 82卷 / 23期

关键词：

NONLINEAR DYNAMICS; LASERS;

D O I：

10.1103/PhysRevB.82.235301

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work the ultrafast gain recovery dynamics of a quantum dot semiconductor optical amplifier is investigated on the basis of semiconductor Bloch equations including microscopically calculated carrier-carrier scattering rates between the two-dimensional carrier reservoir and the confined quantum dot ground and first excited state. By analyzing the different scattering contributions we show that the cascading process makes a major contribution to the ultrafast recovery dynamics.

引用

页数：6

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