Double-waveguide interband cascade laser with dual-wavelength emission

被引：0

作者：

Weih, Robert ^{[1
]}

Scheuermann, Julian ^{[1
]}

Kamp, Martin ^{[2
,3
]}

Koeth, Johannes ^{[1
]}

Hoefling, Sven ^{[2
,3
,4
]}

机构：

[1] Nanoplus GmbH, Oberer Kirschberg 4, D-97218 Gerbrunn, Germany

[2] Univ Wurzburg, Phys Inst, Tech Phys, D-97074 Wurzburg, Germany

[3] Univ Wurzburg, Wilhelm Conrad Rontgen Res Ctr Complex Mat Syst, D-97074 Wurzburg, Germany

[4] Univ St Andrews, Sch Phys & Astron, SUPA, St Andrews KY16 9SS, Fife, Scotland

来源：

APPLIED PHYSICS LETTERS | 2018年 / 113卷 / 25期

关键词：

D O I：

10.1063/1.5079521

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Interband cascade lasers (ICLs) with dual wavelength emission have been realized by utilizing two spatially separated active regions in the same device. The two wavelengths (3.1 and 3.7 mu m) were chosen in order to demonstrate that the usual spectral gain bandwidth of an ICL can be overcome. At 20 degrees C, threshold current densities as low as 215 A/cm(2) (short wavelength) and 158 A/cm(2) (long wavelength) could be achieved in the pulsed mode. It was possible for an epi-up mounted device to maintain dual-wavelength continuous-wave emission up to 0 degrees C. Despite the longer wavelength emission being suppressed at higher temperatures, the shorter wavelength maintained an output power of more than 10 mW at 15 degrees C. Published by AIP Publishing.

引用

页数：3

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