Low-loss quantum-dot-based saturable absorber for efficient femtosecond pulse generation

A. A. Lagatsky, F. M. Bain, C. T. A. Brown, W. Sibbett, D. A. Livshits, G. Erbert, E. U. Rafailov

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    41 Citations (Scopus)


    We report the efficient generation of femtosecond pulses from a diode-pumped solid-state laser that has been passively mode locked using a quantum-dot-based saturable absorber. Average output powers up to 1.15 W and transform-limited pulses as short as 114 fs were obtained around 1040 nm with a pulse repetition frequency of 107 MHz from a diode-pumped Yb3+:KY(WO4)(2) laser. The InGaAs quantum-dot saturable absorber was characterized to have a saturation fluence of 25 mu J/cm(2) and nonsaturable losses of less than 0.2% with an initial low-signal absorption of 2.5% at 1040 nm.

    Original languageEnglish
    Article number231111
    Pages (from-to)-
    Number of pages3
    JournalApplied Physics Letters
    Issue number23
    Publication statusPublished - 3 Dec 2007


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