Starting from the growth of high-quality 1.3 μm GaInNAs/GaAs quantum well (QW), the QW emission wavelength has been extended up to 1.55 μm by a combination of lowering growth rate, using GaNAs barriers and incorporating some amount of Sb. The photoluminescence properties of 1.5 μm range GaInNAsSb/GaNAs QWs are quite comparable to the 1.3 μm QWs, revealing positive effect of Sb on improving the optical quality of the QWs. A 1.59 μm lasing of a GaInNAsSb/GaNAs single-QW laser diode is obtained under continuous current injection at room temperature. The threshold current density is 2.6 kA/cm2 with as-cleaved facet mirrors.
Published in:
Applied Physics Letters
(Volume:87
,
Issue:
23
)
Date of Publication:
Dec 2005
- Page(s):
-
231121
-
231121-3
- ISSN :
-
0003-6951
- Digital Object Identifier :
-
10.1063/1.2140614
- Date of Current Version :
-
18 June 2009
- Issue Date :
-
Dec 2005