All-bismuth fiber system for femtosecond pulse generation, compression, and energy scaling

Teppo Noronen, Mikhail Melkumov, Dmitrii Stolyarov, Vladimir F. Khopin, Evgenii Dianov, Oleg G. Okhotnikov

    Research output: Contribution to journalArticleScientificpeer-review

    11 Citations (Scopus)

    Abstract

    We demonstrate a 1.44-mu m bismuth-doped master oscillator-power amplifier (MOPA) system for generating femtosecond pulses. The cavity of master oscillator comprises dispersion-compensating fiber for detuning the total dispersion to the normal regime and a carbon nanotube saturable absorber for triggering the mode-locked operation. The described multifunction bismuth fiber amplifier performs energy scaling, large spectral broadening, and pulse compression. The results show that the large chirp superimposed on the pulses in the bismuth oscillator with normal dispersion can be effectively suppressed in a subsequent bismuth power amplifier with anomalous dispersion and high nonlinearity, resulting in high-quality pulses with record duration of 240 fs. An all-fiber design provides a practical solution that avoids the need for supplementary pulse stretching and compression. (C) 2015 Optical Society of America

    Original languageEnglish
    Pages (from-to)2217-2220
    Number of pages4
    JournalOptics Letters
    Volume40
    Issue number10
    DOIs
    Publication statusPublished - 15 May 2015
    Publication typeA1 Journal article-refereed

    Keywords

    • DOPED SILICA
    • LASER

    Publication forum classification

    • Publication forum level 2

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