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Related Concept Videos

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
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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Related Experiment Video

Updated: May 8, 2026

Writing Bragg Gratings in Multicore Fibers
08:48

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Published on: April 20, 2016

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High-efficiency multi-spot beam generation with an all-fiber SMF-SCF structure.

Yongmin Jung, Natasha Vukovic, Christophe A Codemard

    Optics Express
    |June 14, 2025
    PubMed
    Summary
    This summary is machine-generated.

    We developed an efficient fiber-based method using single-mode fiber (SMF) and square-core fiber (SCF) to create multi-spot beam patterns. This technique enhances laser processing efficiency and has potential for photonics and manufacturing applications.

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    Area of Science:

    • Optics and Photonics
    • Materials Science

    Background:

    • Generating multi-spot laser beams is crucial for applications requiring parallel processing.
    • Existing methods for creating multi-spot beam patterns can be complex or inefficient.

    Purpose of the Study:

    • To propose an efficient, fully fiber-based method for generating multi-spot beam patterns.
    • To demonstrate the scalability and applicability of this technique in laser manufacturing.

    Main Methods:

    • Utilized single-mode fiber (SMF) and square-core fiber (SCF) structures.
    • Leveraged multimode interference within the SCF to create configurable square lattice beam patterns (2x2, 3x3, 4x4 arrays).
    • Adjusted SCF length to control beam pattern configuration.

    Main Results:

    • Validated the approach through simulations and experiments at a 1060 nm wavelength.
    • Achieved high power uniformity, minimal optical loss, and excellent stability across different beam configurations.
    • Demonstrated enhanced processing efficiency in initial multi-spot laser drilling tests on metal surfaces.

    Conclusions:

    • The proposed SMF-SCF structure provides an efficient and stable method for generating multi-spot beam patterns.
    • This technique offers significant potential for scalable, compact, and high-precision applications in photonics, laser manufacturing, and biomedical imaging.
    • The ability to increase beam spot counts can substantially improve processing efficiency in relevant applications.