High-temperature interband cascade lasers emitting at λ=3.6-4.3 μm

被引：29

作者：

Canedy, C. L. ^{[1
]}

Bewley, W. W. ^{[1
]}

Kim, M. ^{[1
]}

Kim, C. S. ^{[1
]}

Nolde, J. A. ^{[1
]}

Larrabee, D. C. ^{[1
]}

Lindle, J. R. ^{[1
]}

Vurgaftman, I. ^{[1
]}

Meyer, J. R. ^{[1
]}

机构：

[1] USN, Res Lab, Washington, DC 20375 USA

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 18期

关键词：

D O I：

10.1063/1.2736272

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The authors report the operating characteristics of ten-stage interband cascade lasers from two wafers with room-temperature wavelengths of 4.1 and 4.3 mu m. For 150-mu m-wide stripes, the threshold current densities are as low as 4.8 A/cm(2) at 78 K (cw) and 1.15 kA/cm(2) at room temperature (pulsed). At 78 K, the cw wall-plug efficiency for an 11-mu m-wide ridge with 0.5-mm-long cavity and coated facets is 27%, while a 3-mm-long cavity emits a maximum cw power of 200 mW. Devices from the two wafers have maximum cw operating temperatures of 261 K (lambda approximate to 4.0 mu m) and 243 K (lambda approximate to 4.2 mu m). (c) 2007 American Institute of Physics.

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页数：3

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