Sensitivity of quantum-dot semiconductor lasers to optical feedback

被引：103

作者：

O'Brien, D ^{[1
]}

Hegarty, SP ^{[1
]}

Huyet, G ^{[1
]}

Uskov, AV ^{[1
]}

机构：

[1] Natl Univ Ireland Univ Coll Cork, Dept Phys, Natl Microelect Res Ctr, Cork, Ireland

来源：

OPTICS LETTERS | 2004年 / 29卷 / 10期

关键词：

D O I：

10.1364/OL.29.001072

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The sensitivity of quantum-dot semiconductor lasers to optical feedback is analyzed with a Lang-Kobayashi approach applied to a standard quantum-dot laser model. The carriers are injected into a quantum well and are captured by, or escape from, the quantum dots through either carrier-carrier or phonon-carrier interaction. Because of Pauli blocking, the capture rate into the dots depends on the carrier occupancy level in the dots. Here we show that different carrier capture dynamics lead to a strong modification of the damping of the relaxation oscillations. Regions of increased damping display reduced sensitivity to optical feedback even for a relatively large a factor. (C) 2004 Optical Society of America

引用

页码：1072 / 1074

页数：3

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