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Polarized superfluorescent fiber source.

D G Falquier, J L Wagener, M J Digonnet

    Optics Letters
    |February 1, 1997
    PubMed
    Summary
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    We developed a polarized superfluorescent fiber source (SFS) that significantly boosts output power. This polarized SFS enhances the desired linearly polarized component by 1.76 times compared to standard SFS designs.

    Area of Science:

    • Optics and Photonics
    • Fiber Lasers and Amplifiers

    Background:

    • Superfluorescent fiber sources (SFS) are utilized in various optical applications.
    • Standard SFS designs often produce unpolarized or weakly polarized output.
    • Improving polarization control in SFS is crucial for enhanced performance in polarization-sensitive systems.

    Purpose of the Study:

    • To demonstrate a novel polarized superfluorescent fiber source (SFS).
    • To significantly increase the output power of the desired linearly polarized component.
    • To achieve higher efficiency compared to standard unpolarized SFS.

    Main Methods:

    • Development of a superfluorescent fiber source utilizing erbium-doped fiber.
    • Integration of a low-loss polarizer at an optimal position within the fiber.

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  • Comparative analysis of output power between the polarized and unpolarized SFS configurations using identical pump power.

    • Main Results:

    • The polarized SFS demonstrated a 1.76-fold increase in the power of the desired linearly polarized component.
    • The enhancement was achieved without increasing the overall pump power.
    • The insertion of the polarizer effectively improved polarization purity and power delivery.

    Conclusions:

    • A highly efficient polarized superfluorescent fiber source has been successfully demonstrated.
    • The proposed method offers a simple and effective way to enhance polarized output power in SFS.
    • This advancement has potential applications in fields requiring high-power, linearly polarized light sources.