High peak power (2.2W) superlattice quantum cascade laser

Authors
Scamarcio, G Troccoli, M Capasso, F Hutchinson, AL Sivco, DL Cho, AY
Citation
G. Scamarcio et al., High peak power (2.2W) superlattice quantum cascade laser, ELECTR LETT, 37(5), 2001, pp. 295-296
Citations number
7
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS LETTERS
ISSN journal
00135194 → ACNP
Volume
37
Issue
5
Year of publication
2001
Pages
295 - 296
Database
ISI
SICI code
0013-5194(20010301)37:5<295:HPP(SQ>2.0.ZU;2-C
Abstract
The improved optical power performance of superlattice quantum cascade lase rs with a novel injector design allow ing the tunnelling of electrons into high energy states of the excited miniband is reported. At 8.4 mum and temp eratures less than or equal to 120K, peak powers > 2W per facet are measure d, corresponding to a record power of 88mW/stage. A slope efficiency of 160 mW/A over a current range six times larger than the laser threshold is obse rved.