TY - JOUR T1 - P-i-n junction quantum dot saturable absorber mirror T2 - Electrical control of ultrafast dynamics A1 - Zolotovskaya,S.A. A1 - Butkus,M. A1 - Rafailov,E.U. A1 - Häring,R. A1 - Able,A. A1 - Kaenders,W. A1 - Krestnikov,I.L. A1 - Livshits,D.A. AU - Zolotovskaya,S.A. AU - Butkus,M. AU - Rafailov,E.U. AU - Häring,R. AU - Able,A. AU - Kaenders,W. AU - Krestnikov,I.L. AU - Livshits,D.A. PY - 2012/4/9 Y1 - 2012/4/9 N2 - 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. AB - 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. U2 - 10.1364/OE.20.009038 DO - 10.1364/OE.20.009038 M1 - Article JO - Optics Express JF - Optics Express SN - 1094-4087 IS - 8 VL - 20 SP - 9038 EP - 9045 ER -