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Single-longitudinal-mode ring diamond Raman laser.

Ondrej Kitzler, Jipeng Lin, Helen M Pask

    Optics Letters
    |April 1, 2017
    PubMed
    Summary
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    We developed a stable single-longitudinal-mode ring diamond Raman laser. Two methods, gain enhancement and loss reduction, achieved unidirectional operation for this advanced laser system.

    Area of Science:

    • Optics and Photonics
    • Laser Physics

    Background:

    • Ring lasers are crucial for various applications requiring stable, narrow-linewidth light sources.
    • Diamond Raman lasers offer potential for generating specific wavelengths through stimulated Raman scattering.
    • Achieving single-longitudinal-mode operation in ring lasers is essential for high-precision measurements and applications.

    Purpose of the Study:

    • To demonstrate a stable single-longitudinal-mode (SLM) operation in a ring diamond Raman laser.
    • To investigate methods for achieving unidirectional operation in such a laser system.
    • To analyze the effectiveness of gain and loss manipulation for SLM control.

    Main Methods:

    • Utilizing a tunable single-mode Ti:sapphire laser as the pump source.
    • Implementing a ring cavity configuration with a diamond Raman gain medium.

    Related Experiment Videos

  • Employing two distinct techniques for unidirectional operation: gain enhancement via a reinjecting mirror and loss enhancement via sum frequency mixing in Beta Barium Borate (BBO).

    • Main Results:

    • Successful demonstration of a stable single-longitudinal-mode ring diamond Raman laser.
    • Both the reinjecting mirror (gain enhancement) and sum frequency mixing (loss enhancement) methods effectively induced unidirectional operation.
    • Stable SLM operation was achieved and verified through both implemented methods.

    Conclusions:

    • Unidirectional operation is achievable in ring diamond Raman lasers through strategic gain or loss manipulation.
    • The demonstrated methods provide viable pathways for generating stable, single-longitudinal-mode output from diamond Raman lasers.
    • This work contributes to the development of advanced laser sources with potential applications in spectroscopy and nonlinear optics.