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Multifunction reflector controlled by liquid piston for optical switch and beam steering.

Chao Liu, Di Wang, Lei Li

    Optics Express
    |December 28, 2019
    PubMed
    Summary

    This study introduces a novel liquid piston-controlled multifunction reflector for optical switching and beam steering. This device enables precise light manipulation with potential applications in optical communications.

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    Area of Science:

    • Optics and Photonics
    • Microfluidics
    • Materials Science

    Background:

    • Traditional optical switches and beam steering devices often face limitations in terms of speed, precision, and integration.
    • Microfluidic systems offer unique advantages for creating tunable optical components due to their precise fluid control capabilities.

    Purpose of the Study:

    • To present a novel multifunction reflector system utilizing liquid pistons for optical switching and beam steering.
    • To demonstrate the feasibility and performance of this liquid piston-driven optical device.

    Main Methods:

    • Fabrication of a multifunction reflector with two liquid cavities featuring microchannels and elastic membranes.
    • Utilizing liquid injection to form 'liquid pistons' that dynamically alter the reflector's shape and orientation.

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  • Controlling the number and height of liquid pistons to achieve desired reflector deflection.

    • Main Results:

    • Experimental validation of the multifunction reflector's capability to perform a 2x2 optical switch.
    • Demonstration of beam deflection angles ranging from 0° to 72° in two directions.
    • Confirmation of the device's tunability through adjustment of liquid piston parameters.

    Conclusions:

    • The developed liquid piston-controlled multifunction reflector offers a versatile platform for optical switching and beam steering.
    • This technology shows significant promise for applications in free-space optical communications, laser detection, and variable optical attenuators.