High peak power and sub-picosecond Fourier-limited pulse generation from passively mode-locked monolithic two-section gain-guided tapered InGaAs quantum-dot lasers

D. I. Nikitichev, Y. Ding, M. A. Cataluna, E. U. Rafailov, L. Drzewietzki, S. Breuer, W. Elsaesser, M. Rossetti, P. Bardella, T. Xu, I. Montrosset, I. Krestnikov, D. Livshits, M. Ruiz, M. Tran, Y. Robert, M. Krakowski

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    22 Citations (Scopus)


    We report on the development of a new generation of high-power ultrashort pulse quantum-dot lasers with tapered gain section. Two device designs are proposed and fabricated, with different total lengths and absorber-to-gain-section length-ratios. These designs have been informed by numerical simulations of the dynamic mode-locking regimes and their dependence on the structural parameters. One device design demonstrated a record-high peak power of 17.7 W with 1.26 ps pulse width and a second design enabled the generation of a Fourier-limited 672 fs pulse width with a peak power of 3.8 W. A maximum output average power of 288 mW with 28.7 pJ pulse energy was also attained. In addition, the integrated timing jitter of 2.6 ps and far-field patterns are demonstrated.

    Original languageEnglish
    Pages (from-to)715-724
    Number of pages10
    JournalLaser Physics
    Issue number4
    Publication statusPublished - 2012

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