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Related Experiment Video

Updated: Jun 22, 2026

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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Mode-locked Nd-doped microstructured fiber laser.

Mathias Moenster, Peter Glas, Günter Steinmeyer

    Optics Express
    |June 2, 2009
    PubMed
    Summary

    Researchers achieved passive mode-locking in a microstructured fiber laser, a first for this technology. This development utilizes a neodymium-doped fiber with low dispersion, enabling stable ultrashort pulse generation.

    Area of Science:

    • Optics and Photonics
    • Laser Physics
    • Materials Science

    Background:

    • Microstructured fiber lasers offer unique optical properties.
    • Passive mode-locking is a key technique for generating ultrashort laser pulses.
    • Neodymium (Nd)-doped fibers are suitable gain media for laser applications.

    Purpose of the Study:

    • To demonstrate passive mode-locking in a microstructured fiber laser for the first time.
    • To investigate the performance of an Nd-doped microstructured fiber laser.
    • To characterize the generated ultrashort laser pulses.

    Main Methods:

    • Utilized a neodymium (Nd)-doped microstructured fiber as the gain medium.
    • Employed a semiconductor saturable absorber mirror (SESAM) for initiating passive mode-locking.

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    Last Updated: Jun 22, 2026

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    Published on: November 22, 2019

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  • Measured pulse duration and pulse energy of the generated laser output.

    • Main Results:

    • Successfully achieved stable passive mode-locking in the microstructured fiber laser.
    • Observed reduced optical dispersion in the Nd-doped microstructured fiber at 1060 nm.
    • Generated stable pulses with a duration of approximately 26 picoseconds (ps) and an energy of 0.7 nanojoules (nJ).

    Conclusions:

    • Passive mode-locking is feasible in microstructured fiber lasers.
    • Nd-doped microstructured fibers are effective gain media for mode-locked lasers.
    • The demonstrated laser system provides a platform for generating high-quality ultrashort pulses.