Ultrafast gain and refractive index dynamics in GaInNAsSb semiconductor optical amplifiers

Download
  1. (PDF, 530 KB)
  2. Get@NRC: Ultrafast gain and refractive index dynamics in GaInNAsSb semiconductor optical amplifiers (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1063/1.3246781
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titleJournal of Applied Physics
Volume106
Pages15; # of pages: 5
AbstractThe gain and refractive index dynamics of dilute nitride antimonide semiconductor optical amplifiers are studied using heterodyne pump probe spectroscopy, both in forward and reverse bias regimes. In the forward biased absorption regime, both gain and refractive index relax on the same timescale indicating that both quantities are linked to the same relaxation process, interband recombination. Above transparency, in the forward biased gain regime, the gain and phase exhibit differing timescales resulting in a dynamical alpha factor that varies strongly with time. Reversed bias measurements suggest a recombination dominated absorption recovery where the recovery timescale increases with increasing reversed bias, possibly due to charge separation effects.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedYes
NPARC number17320720
Export citationExport as RIS
Report a correctionReport a correction
Record identifierc16d0cf1-562f-4585-857d-cc29a75044d6
Record created2011-03-26
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)