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Related Concept Videos

Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...

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Related Experiment Video

Updated: Jun 20, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Fiber-optic coupling based on nonimaging expanded-beam optics.

B Moslehi, J Ng, I Kasimoff

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

    We developed low-cost, mass-producible fiber-optic couplers and connectors. These components achieve low insertion loss and high stability, making them suitable for widespread optical communication applications.

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    Area of Science:

    • Optoelectronics
    • Optical Engineering
    • Materials Science

    Background:

    • Traditional fiber-optic connectors face challenges in cost and mass production.
    • Achieving low insertion loss and high stability in fiber connections is crucial for optical networks.

    Purpose of the Study:

    • To design and fabricate low-cost, mass-producible multimode fiber-optic couplers and connectors.
    • To demonstrate the effectiveness of nonimaging beam-expanding optics for stable optical coupling.

    Main Methods:

    • Utilized nonimaging beam-expanding optics and Liouville's theorem for coupler/connector design.
    • Employed plastic injection-molding for mass production of beam expanders.
    • Packaged components in standard connector housings.

    Main Results:

    • Theoretical analysis predicted a pair coupling loss of -0.25 dB.
    • Experimental measurements confirmed insertion losses as low as -0.38 dB.
    • Demonstrated high tolerance for misalignments, ensuring stable coupling.

    Conclusions:

    • The developed fiber-optic couplers and connectors are low-cost and mass-producible.
    • The design offers excellent performance with low insertion loss and high stability.
    • The technology is compatible with standard fiber geometries and suitable for broad adoption.