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Tunable dysprosium laser.

Matthew R Majewski, Stuart D Jackson

    Optics Letters
    |October 18, 2016
    PubMed
    Summary
    This summary is machine-generated.

    We demonstrated a tunable dysprosium (Dy3+) fiber laser. This laser operates between 2.95 and 3.35 μm using in-band pumping and a diffraction grating resonator.

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    Area of Science:

    • Laser Physics
    • Materials Science
    • Optical Engineering

    Background:

    • Development of tunable lasers is crucial for various spectroscopic applications.
    • Dysprosium (Dy3+) doped materials offer potential for mid-infrared laser emission.
    • Fiber laser technology provides advantages in beam quality and robustness.

    Purpose of the Study:

    • To demonstrate a tunable fiber laser based on dysprosium.
    • To investigate the performance of Dy3+ in a fluoride fiber host for laser applications.
    • To achieve laser operation in the 3 μm wavelength range.

    Main Methods:

    • Utilized in-band pumping of a Dy3+-doped fluoride fiber.
    • Employed a simple resonator design incorporating a ruled diffraction grating for wavelength tuning.
    • Characterized the laser output spectrum and tuning range.

    Main Results:

    • Successfully demonstrated a tunable dysprosium fiber laser.
    • Achieved laser operation with tuning between 2.95 and 3.35 μm.
    • Tuning range was limited by the spectral characteristics of available optical components.

    Conclusions:

    • In-band pumping of Dy3+-doped fluoride fiber is an effective method for achieving tunable mid-infrared laser emission.
    • The demonstrated laser design shows promise for applications requiring tunable sources in the 3 μm region.
    • Further optimization with broader-bandwidth optics could extend the tuning range.