Room-temperature, electrically-pumped multiple-active-region VCSELs with high differential efficiency at 1.55 mu m

Authors
Kim, JK Hall, E Sjolund, O Almuneau, G Coldren, LA
Citation
Jk. Kim et al., Room-temperature, electrically-pumped multiple-active-region VCSELs with high differential efficiency at 1.55 mu m, ELECTR LETT, 35(13), 1999, pp. 1084-1085
Citations number
7
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS LETTERS
ISSN journal
00135194 → ACNP
Volume
35
Issue
13
Year of publication
1999
Pages
1084 - 1085
Database
ISI
SICI code
0013-5194(19990624)35:13<1084:REMVWH>2.0.ZU;2-W
Abstract
All-monolithic, single-step grown, room-temperature, electrically-pumped ve rtical cavity lasers based on III-As compounds are presented with a thresho ld current density 570A/cm(2), a differential efficiency greater than 50% a nd a threshold voltage of 3V. The lasers employ three active regions, epita xially stacked in series with Esaki junctions to increase the gain and the differential efficiency.