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Updated: Feb 25, 2026

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
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Diode-side-pumped Alexandrite slab lasers.

M J Damzen, G M Thomas, A Minassian

    Optics Express
    |August 10, 2017
    PubMed
    Summary
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    Diode-side-pumping of Alexandrite slab lasers achieved significant energy and power scaling. These findings demonstrate promising strategies for future high-power Alexandrite laser development.

    Area of Science:

    • Laser Physics
    • Solid-State Lasers
    • Optoelectronics

    Background:

    • Alexandrite lasers are crucial for various applications requiring tunable, high-energy output.
    • Scaling Alexandrite laser performance is essential for advancing technologies in spectroscopy, medicine, and materials processing.
    • Diode-pumping offers an efficient and compact alternative to traditional lamp-pumping methods for solid-state lasers.

    Purpose of the Study:

    • To investigate diode-side-pumping techniques for Alexandrite slab lasers.
    • To explore different cavity configurations, including linear and grazing-incidence bounce cavities.
    • To assess the potential for power and energy scaling of Alexandrite lasers using these architectures.

    Main Methods:

    • Utilized diode-side-pumping configurations for Alexandrite slab lasers.

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  • Employed linear and grazing-incidence bounce cavity designs.
  • Characterized laser output energy, power, and mode quality at various configurations.

    • Main Results:

    • Achieved 23.4 mJ free-running energy at 100 Hz with ~40% slope efficiency using double-pass side pumping.
    • Demonstrated 12.2 W output power in a single-bounce slab laser configuration.
    • Obtained 6.5 W multimode and 4.5 W TEM00 mode output in a double-bounce configuration.

    Conclusions:

    • Diode-side-pumped Alexandrite slab architectures show significant potential for power and energy scaling.
    • The presented results highlight effective strategies for optimizing Alexandrite laser performance.
    • Future advancements in high-power red diode pumping will further enhance these capabilities.