Ultrafast response of tunnel injected quantum dot based semiconductor optical amplifiers in the 1300 nm range

J. Pulka, T. Piwonski, G. Huyet, J. Houlihan, E. Semenova, A. Lematre, K. Merghem, A. Martinez, A. Ramdane

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The ultrafast gain and refractive index dynamics of tunnel injected quantum dot based semiconductor optical amplifiers in the 1300 nm range are investigated using a heterodyne pump probe technique. In the gain regime, ground state wavelengths exhibit full gain recovery in less than 10 ps up to 3 times transparency, attributed to enhanced carrier refilling via the injector layer. The effect of the injector can also been seen in unusual phase dynamics at excited state wavelengths at this injection level.

Original languageEnglish
Article number071107
JournalApplied Physics Letters
Volume100
Issue number7
DOIs
Publication statusPublished - 13 Feb 2012

Fingerprint

Dive into the research topics of 'Ultrafast response of tunnel injected quantum dot based semiconductor optical amplifiers in the 1300 nm range'. Together they form a unique fingerprint.

Cite this