THEORETICAL PERFORMANCE OF MIDINFRARED BROKEN-GAP MULTILAYER SUPERLATTICE LASERS

Authors
FLATTE ME OLESBERG JT ANSON SA BOGGESS TF HASENBERG TC MILES TH GREIN CH
Citation
Me. Flatte et al., THEORETICAL PERFORMANCE OF MIDINFRARED BROKEN-GAP MULTILAYER SUPERLATTICE LASERS, Applied physics letters, 70(24), 1997, pp. 3212-3214
Citations number
19
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
70
Issue
24
Year of publication
1997
Pages
3212 - 3214
Database
ISI
SICI code
0003-6951(1997)70:24<3212:TPOMBM>2.0.ZU;2-1
Abstract
We present calculations of the differential gain and threshold current densities for a 3.7 mu m multiple quantum well structure consisting o f a ''well'' composed of several periods of an InAs/InGaSb superlattic e alternating with a quinternary alloy ''barrier.'' We find serious li mitations to the optical properties of active regions composed of thes e multiple quantum wells, and propose a four-layer superlattice struct ure which corrects these problems. (C) 1997 American Institute of Phys ics.