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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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Hybrid high-energy high-power pulsewidth-tunable picosecond source.

Julien Pouysegur, Florent Guichard, Yoann Zaouter

    Optics Letters
    |November 14, 2015
    PubMed
    Summary

    A new hybrid laser generates ultrashort, high-energy pulses for advanced applications. This ytterbium-doped system offers tunable pulse durations and scalable energy, making it a versatile tool.

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    Area of Science:

    • Laser Physics
    • Fiber Optics
    • Nonlinear Optics

    Background:

    • High-power, ultrashort pulse lasers are crucial for scientific advancements.
    • Existing laser systems often face limitations in terms of energy scaling, pulse duration tunability, and compactness.
    • There is a need for robust and versatile laser sources for demanding applications.

    Purpose of the Study:

    • To describe a novel hybrid ytterbium-doped fiber-bulk laser source.
    • To investigate the pulse duration tunability and energy scaling capabilities of the laser architecture.
    • To highlight the potential applications of this laser source.

    Main Methods:

    • Development of a hybrid laser architecture combining fiber and bulk components.
    • Implementation of an adjustable spectral compression-based seeder for pulse duration control.

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  • Investigation of the divided-pulse amplification method for energy scaling.
  • Characterization of laser output parameters including pulse duration, energy, peak power, repetition rate, and wavelength.

    • Main Results:

    • Generation of 3 ps, 350 μJ, 116 MW peak power Fourier transform-limited pulses.
    • Achieved a repetition rate of 50 kHz at a wavelength of 1030 nm.
    • Demonstrated pulse duration tunability via the adjustable spectral compression seeder.
    • Investigated energy scaling potential using the divided-pulse amplification technique.

    Conclusions:

    • The developed hybrid laser source offers a robust, compact, and versatile solution.
    • The source is suitable for demanding applications like RF photocathode guns and advanced X- and gamma-ray generation.
    • The architecture shows promise for pumping optical parametric chirped-pulse amplification systems.