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P-i-n junction quantum dot saturable absorber mirror

P-i-n junction quantum dot saturable absorber mirror : Electrical control of ultrafast dynamics

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Authors

  • S.A. Zolotovskaya
  • M. Butkus
  • E.U. Rafailov
  • R. Häring
  • A. Able
  • W. Kaenders
  • I.L. Krestnikov
  • D.A. Livshits

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Info

Original languageEnglish
Pages9038-9045
Number of pages8
JournalOptics Express
Journal publication date9 Apr 2012
Journal number8
Volume20
DOIs
StatePublished

Abstract

We report on nonlinear optical properties of a p-i-n junction quantum dot saturable absorber based on InGaAs/GaAs. Absorption recovery dynamics and nonlinear reflectivity are investigated for different reverse bias and pump power conditions. A decrease in absorption recovery time of nearly two orders of magnitude is demonstrated by applying a voltage between 0 and-20 V. The saturable absorber modulation depth and saturation fluence are found to be independent from the applied reverse bias. © 2012 Optical Society of America.

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