Abstract
High performance 1300 nm lasers based on self-organized InAs/InGaAs quantum dots (QDs) are reported. By optimizing the QD growth parameters and decreasing the waveguide thickness, a high modal gain and a low transparency current density of 32 cm-1 and 35 A cm-2, respectively, were obtained from a device containing five stacked QD layers. The internal quantum efficiency is as high as 90%.
Original language | English |
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Article number | 017 |
Pages (from-to) | 396-398 |
Number of pages | 3 |
Journal | Semiconductor Science and Technology |
Volume | 22 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Apr 2007 |
Externally published | Yes |