Extraordinarily wide optical gain spectrum in 2.2-2.5 mu m In(Al)GaAsSb/GaSb quantum-well ridge-waveguide lasers

Authors
Donetsky, DV Westerfeld, D Belenky, GL Martinelli, RU Garbuzov, DZ Connolly, JC
Citation
Dv. Donetsky et al., Extraordinarily wide optical gain spectrum in 2.2-2.5 mu m In(Al)GaAsSb/GaSb quantum-well ridge-waveguide lasers, J APPL PHYS, 90(8), 2001, pp. 4281-4283
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
90
Issue
8
Year of publication
2001
Pages
4281 - 4283
Database
ISI
SICI code
0021-8979(20011015)90:8<4281:EWOGSI>2.0.ZU;2-3
Abstract
A wide optical gain spectrum with full width at half maximum Delta lambda a pproximate to 350 urn has been demonstrated in midinfrared (2.2-2.5 mum) ro om-temperature-operated InGa(As)Sb/GaSb quantum-well (QW) ridge-waveguide d iode lasers. A QW width of 200 Angstrom ensured a small energy separation b etween the first and second quantized states in the QW. Transitions from bo th quantized states contributed equally to the overall gain spectrum when t he optical loss was optimized. (C) 2001 American Institute of Physics.