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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
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Nonmechanical optical switch for single-mode fibers.

M Shirasaki, H Nakajima, T Obokata

    Applied Optics
    |April 20, 2010
    PubMed
    Summary

    This study presents a novel bistable nonmechanical optical switch for single-mode optical fibers. The device offers low insertion loss and crosstalk at 1.3-micrometer wavelength, ideal for optical communication systems.

    Area of Science:

    • Photonics and Optical Engineering
    • Materials Science
    • Electrical Engineering

    Background:

    • Nonmechanical optical switches are crucial for advanced optical networks.
    • Existing switches often face limitations in speed, size, or power consumption.
    • The development of efficient and reliable optical switching components is an ongoing research area.

    Purpose of the Study:

    • To introduce a novel bistable nonmechanical optical switch.
    • To characterize its performance at the 1.3-micrometer wavelength.
    • To demonstrate its suitability for single-mode optical fiber applications.

    Main Methods:

    • Fabrication of a 1-input/2-output bistable optical switch.
    • Measurement of optical losses (insertion loss) and crosstalk.

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  • Evaluation of switching performance using electrical pulses (voltage and current).

    • Main Results:

    • The optical switch operates at the 1.3-micrometer wavelength.
    • Insertion losses are measured at 1.4 dB, with crosstalk at -28 dB.
    • Switching is achieved with a 20-microsecond pulse, 5V, and 500 mA current.
    • Optical losses are independent of input fiber polarization.

    Conclusions:

    • The developed bistable nonmechanical optical switch demonstrates excellent performance characteristics.
    • Its low loss and crosstalk make it a promising component for optical communication systems.
    • The device offers a viable solution for efficient optical path switching.