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Related Concept Videos

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.
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Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
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High-power superfluorescent fiber source.

I N Duling Iii, W K Burns, L Goldberg

    Optics Letters
    |September 18, 2009
    PubMed
    Summary
    This summary is machine-generated.

    This study demonstrates superfluorescent emission from a neodymium-doped fiber laser, achieving over 80 mW output. Spectral bandwidth varied with output power, showing a minimum around 10 mW.

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    Area of Science:

    • Optics and Photonics
    • Laser Physics
    • Fiber Optics

    Background:

    • Broad-stripe laser diodes are utilized as pump sources.
    • Neodymium-doped offset core fibers are investigated for optical emission.
    • Superfluorescent emission is a key phenomenon in fiber lasers.

    Purpose of the Study:

    • To investigate the generation of superfluorescent emission from a neodymium-doped offset core fiber.
    • To characterize the power dependence of the spectral bandwidth of the superfluorescent emission.
    • To explore the influence of configuration on spectral smoothness.

    Main Methods:

    • Pumping a neodymium-doped offset core fiber with a broad-stripe laser diode.
    • Measuring the output power of the superfluorescent emission.
    • Analyzing the spectral bandwidth and smoothness at different power levels.

    Main Results:

    • Over 80 mW of superfluorescent emission was achieved.
    • The spectral bandwidth exhibited a minimum near 10 mW, increasing to 5 nm at 80 mW.
    • Smooth spectral output was configuration-dependent above 15 mW.

    Conclusions:

    • Neodymium-doped offset core fibers can efficiently produce high-power superfluorescent emission.
    • Output power significantly impacts spectral bandwidth.
    • Careful configuration is necessary for optimal spectral quality at higher powers.