Compression of realistic laser pulses in hollow-core photonic bandgap fibers

Jesper Lægsgaard, John Roberts

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Dispersive compression of chirped few-picosecond pulses at the microjoule level in a hollow-core photonic bandgap fiber is studied numerically. The performance of ideal parabolic input pulses is compared to pulses from a narrowband picosecond oscillator broadened by self-phase modulation during amplification. It is shown that the parabolic pulses are superior for compression of high-quality femtosecond pulses up to the few-megawatts level. With peak powers of 5-10 MW or higher, there is no significant difference in power scaling and pulse quality between the two pulse types for comparable values of power, duration, and bandwidth. The same conclusion is found for the peak power and energy of solitons formed beyond the point of maximal compression. Long-pass filtering of these solitons is shown to be a promising route to clean solitonlike output pulses with peak powers of several MW.
    Original languageEnglish
    JournalJournal of the Optical Society of America - B - Optical Physics
    Volume26
    Issue number4
    Pages (from-to)783-791
    ISSN0740-3224
    DOIs
    Publication statusPublished - 2009

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