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Adaptive fiber optics collimator based on flexible hinges.

Dong Zhi, Yanxing Ma, Pengfei Ma

    Applied Optics
    |October 17, 2014
    PubMed
    Summary

    We developed a novel adaptive fiber optics collimator (AFOC) using flexible hinges and piezoelectric actuators. This design enables fast tip-tilt control and supports higher optical power, ideal for high-power fiber laser systems.

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    Area of Science:

    • Optics and Photonics
    • Mechanical Engineering
    • Materials Science

    Background:

    • Traditional adaptive fiber optics collimators (AFOCs) often struggle with high optical power handling.
    • Existing designs may have limitations in speed and precision for beam steering applications.

    Purpose of the Study:

    • To introduce a new AFOC design utilizing flexible hinges and piezoelectric actuators for enhanced performance.
    • To investigate the tip-tilt control capabilities and power handling of the novel AFOC structure.

    Main Methods:

    • Fabrication of an adaptive fiber optics collimator based on flexible hinges.
    • Utilizing piezoelectric stacks for precise X-Y displacement control of the fiber end cap.
    • Experimental measurement of the end cap's deviation and the device's resonance frequency.

    Main Results:

    • The new AFOC design demonstrates fast control over the tip-tilt deviation of the laser beam.
    • The fiber end cap in the new design can withstand significantly higher optical power compared to naked fibers.
    • Experimental validation of the device's performance characteristics, including deviation and resonance frequency.

    Conclusions:

    • The flexible hinge-based AFOC offers a robust solution for high-power fiber laser systems.
    • The design enables precise and rapid beam steering, overcoming limitations of traditional AFOCs.
    • This innovation is well-suited for demanding applications requiring high optical power and accurate beam control.