Gain competition in dual wavelength quantum cascade lasers

被引：30

作者：

Geiser, Markus ^{[1
,4
]}

Pfluegl, Christian ^{[1
]}

Belyanin, Alexey ^{[2
]}

Wang, Qi Jie ^{[1
]}

Yu, Nanfang ^{[1
]}

Edamura, Tadanaka ^{[3
]}

Yamanishi, Masamichi ^{[3
]}

Kan, Hirofumi ^{[3
]}

Fischer, Milan ^{[4
]}

Wittmann, Andreas ^{[4
]}

Faist, Jerome ^{[4
]}

Capasso, Federico ^{[1
]}

机构：

[1] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[2] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA

[3] Hamamatsu Photon KK, Cent Res Labs, Hamakita Ku, Hamamatsu, Shizuoka 4348601, Japan

[4] Swiss Fed Inst Technol, Inst Quantum Elect, CH-8093 Zurich, Switzerland

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 10期

关键词：

BOUND-TO-CONTINUUM; TEMPERATURE; GENERATION; OPERATION;

D O I：

10.1364/OE.18.009900

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigated dual wavelength mid-infrared quantum cascade lasers based on heterogeneous cascades. We found that due to gain competition laser action tends to start in higher order lateral modes. The mid-infrared mode with the lower threshold current reduces population inversion for the second laser with the higher threshold current due to stimulated emission. We developed a rate equation model to quantitatively describe mode interactions due to mutual gain depletion. (C) 2010 Optical Society of America

引用

页码：9900 / 9908

页数：9

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