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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Optical limiting, pulse reshaping, and stabilization with a nonlinear absorptive fiber system.

G S He, L Yuan, J D Bhawalkar

    Applied Optics
    |May 20, 1997
    PubMed
    Summary

    New dyes in hollow fibers demonstrate optical limiting and pulse stabilization. These nonlinear optical effects show potential for advanced laser applications and optical signal processing.

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    Area of Science:

    • Nonlinear Optics
    • Materials Science

    Background:

    • Nonlinear optical phenomena are crucial for advanced photonic applications.
    • Dye solutions in hollow fiber systems offer a versatile platform for studying these effects.

    Purpose of the Study:

    • To investigate optical limiting, pulse reshaping, and stabilization using novel dyes in a hollow fiber system.
    • To evaluate the performance of two new dyes, ASPI and APSS, for nonlinear optical applications.

    Main Methods:

    • Utilized a two-photon absorption mechanism in a dye-solution-filled hollow fiber.
    • Employed laser pulse trains with specific pulse widths and intensities.
    • Tested trans-4-[p-(N-hydroxyethyl-N-methylamino)styryl]-N-methylpyridinium iodide (ASPI) and 4-[N-(2-hydroxyethyl)-N-(methyl)amino phenyl]-4?-(6-hydroxyhexyl sulfonyl)-stilbene (APSS) dyes.

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    Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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    Published on: March 20, 2017

    Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
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    Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

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    Main Results:

    • Observed significant optical limiting with ASPI dye at intensities of 400-1000 MW/cm², resulting in flatter and broader transmitted pulse envelopes.
    • Achieved higher nonlinear absorption coefficients and superior optical peak-power stabilization with APSS dye using ~800-nm laser pulses.

    Conclusions:

    • Demonstrated effective optical limiting and pulse manipulation using novel dyes in a hollow fiber system.
    • Highlighted the potential of ASPI and APSS dyes for advanced nonlinear optical applications, including pulse stabilization.