p-i-n junction quantum dot saturable absorber mirror: electrical control of ultrafast dynamics | Zendy

Svetlana A. Zolotovskaya | Zendy; Mantas Butkus | Zendy; R. Häring | Zendy; A. Able | Zendy; Wilhelm Kaenders | Zendy; I. L. Krestnikov | Zendy; D. A. Livshits | Zendy; Edik U. Rafailov | Zendy

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p-i-n junction quantum dot saturable absorber mirror: electrical control of ultrafast dynamics

Author(s) -

Svetlana A. Zolotovskaya,

Mantas Butkus,

R. Häring,

A. Able,

Wilhelm Kaenders,

I. L. Krestnikov,

D. A. Livshits,

Edik U. Rafailov

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.009038

Subject(s) - saturable absorption , optics , materials science , fluence , ultrashort pulse , quantum dot , optoelectronics , absorption (acoustics) , mode locking , saturation (graph theory) , nonlinear optics , laser , wavelength , physics , fiber laser , mathematics , combinatorics

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.

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