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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Wavefront shaping for forward scattering.

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    This study introduces a new wavefront shaping (WFS) method that improves deep tissue optical microscopy by accounting for smooth corrections. This technique enhances imaging quality, especially in scattering samples.

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    Area of Science:

    • Biomedical Optics
    • Microscopy
    • Optical Physics

    Background:

    • Optical microscopy faces limitations in deep tissue penetration due to scattering and aberrations.
    • Adaptive optics (AO) effectively corrects smooth aberrations, while wavefront shaping (WFS) handles scattering and aberrations but can be suboptimal for smooth corrections.
    • Existing WFS methods do not leverage a priori information about the smoothness of required corrections.

    Purpose of the Study:

    • To develop a novel wavefront shaping (WFS) method that incorporates a priori knowledge of smooth corrections.
    • To create a numerically stable and noise-robust WFS technique capable of finding corrections for multiple targets simultaneously.
    • To experimentally validate the performance of the new WFS method against existing techniques.

    Main Methods:

    • A new WFS algorithm was developed, integrating information about the smoothness of the optical correction.
    • The method was designed for numerical stability and robustness against noise.
    • Simultaneous correction for multiple targets was implemented.

    Main Results:

    • The novel WFS method demonstrated superior performance compared to existing WFS techniques.
    • The method showed particular effectiveness in forward scattering samples.
    • Experimental validation confirmed the method's capabilities.

    Conclusions:

    • The developed WFS method effectively combines the strengths of AO and WFS by utilizing information on correction smoothness.
    • This approach offers improved performance for deep tissue optical microscopy, especially in scattering environments.
    • The technique is robust, stable, and capable of multi-target correction.