Static gain saturation in quantum dot semiconductor optical amplifiers

Christian Meuer*, Jungho Kim, Matthias Laemmlin, Sven Liebich, Amir Capua, Gadi Eisenstein, Alexey R. Kovsh, Sergey S. Mikhrin, Igor L. Krestnikov, Dieter Bimberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

42 Scopus citations


Measurements of saturated amplified spontaneous emission-spectra of quantum dot semiconductor optical amplifiers demonstrate efficient replenishment of the quantum-dot ground state population from excited states. This saturation behavior is perfectly modeled by a rate equation model. We examined experimentally the dependence of saturation on the drive current and the saturating optical pump power as well as on the pump wavelength. A coherent noise spectral hole is observed with which we assess dynamical properties and propose optimization of the SOA operating parameters for high speed applications.

Original languageAmerican English
Pages (from-to)8269-8279
Number of pages11
JournalOptics Express
Issue number11
StatePublished - 26 May 2008
Externally publishedYes


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