Ultrafast gain dynamics in 1.5 μm multiple quantum well optical amplifiers

G. Eisenstein, J. M. Wiesenfeld, M. Wegener, G. Sucha, D. S. Chemla, S. Weiss, G. Raybon, U. Koren

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

Following gain saturation by a short pulse, the gain recovery process in multiple quantum well optical amplifiers includes contributions from carriers occupying states with energies above the depleted states within the well, from carriers stored in the barrier layers, which serve as carrier reservoirs, and from conventional Auger recombination. Gain recovery caused by carriers from the reservoirs is rapid (7 ps) and can be made to dominate the slower (Auger) recovery process.

Original languageEnglish
Pages (from-to)158-160
Number of pages3
JournalApplied Physics Letters
Volume58
Issue number2
DOIs
StatePublished - 1991
Externally publishedYes

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