High efficiency and high modal gain InAs/InGaAs/GaAs quantum dot lasers emitting at 1300 nm

A. Salhi*, L. Fortunato, L. Martiradonna, M. T. Todaro, R. Cingolani, A. Passaseo, M. De Vittorio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

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 languageEnglish
Article number017
Pages (from-to)396-398
Number of pages3
JournalSemiconductor Science and Technology
Volume22
Issue number4
DOIs
Publication statusPublished - 1 Apr 2007
Externally publishedYes

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