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Efficient all-solid-state yellow laser source producing 1.2-W average power.

H M Pask, J A Piper

    Optics Letters
    |December 15, 2007
    PubMed
    Summary
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    Researchers developed a practical all-solid-state laser emitting yellow light at 578 nm. This efficient laser source achieved 1.2-W average power and 33% conversion efficiency.

    Area of Science:

    • Optics and Photonics
    • Laser Physics
    • Nonlinear Optics

    Background:

    • All-solid-state laser sources are crucial for various applications.
    • Developing efficient solid-state lasers operating in the visible spectrum presents challenges.
    • Previous methods for generating 578 nm light often involved complex or less efficient techniques.

    Purpose of the Study:

    • To report a novel, practical, and efficient all-solid-state laser source operating at 578 nm.
    • To demonstrate a high-conversion efficiency for generating yellow light from a fundamental laser output.
    • To present a compact laser design utilizing intracavity nonlinear optical crystals.

    Main Methods:

    • Utilized a diode-pumped Neodymium-doped Yttrium Aluminum Garnet (Nd:YAG) laser as the fundamental source at 1064 nm.

    Related Experiment Videos

  • Incorporated an intracavity Lithium Iodate (LiIO3) crystal for Raman conversion to generate first-Stokes output at 1155 nm.
  • Employed an intracavity Lithium Triborate (LiB3O5) crystal for frequency doubling the first-Stokes output to achieve 578 nm yellow light.

    • Main Results:

    • Achieved a Q-switched output with a maximum average power of 1.2 W at 578 nm.
    • Obtained high conversion efficiencies, reaching up to 33% from the fundamental 1064 nm output to the 578 nm yellow light.
    • Demonstrated the feasibility of an all-solid-state approach for generating visible laser light.

    Conclusions:

    • The developed laser source offers a practical and efficient method for generating 578 nm yellow light.
    • The high conversion efficiency and power output make this laser system suitable for various applications requiring visible wavelengths.
    • This work highlights the potential of intracavity Raman conversion and frequency doubling in solid-state laser design.