| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9789521 | Physica E: Low-dimensional Systems and Nanostructures | 2005 | 4 Pages |
Abstract
Quasi-continuous-wave operation of AlGaAs/GaAs-based quantum cascade lasers (λâ¼9 μm) up to 165 K is reported. The strong temperature dependence of the threshold current density and its higher value in high duty cycle is investigated in detail. The self-heating effect in the active region is explored by changing the operating duty cycles. The degradation of lasing performance with temperature is explained.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Jun-Qi Liu, Feng-Qi Liu, Xiu-Zhen Lu, Yu Guo, Zhan-Guo Wang,