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High-speed compact folded Michelson interferometer modulator.

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    This summary is machine-generated.

    This study introduces a compact folded Michelson interferometer (FMI) modulator, achieving high modulation efficiency and a small footprint. The novel design enables efficient optical modulation for high-speed data transmission.

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    Area of Science:

    • Photonics
    • Optical Modulators
    • Integrated Optics

    Background:

    • Traditional optical modulators face limitations in size and efficiency.
    • Miniaturization is crucial for advanced optical communication systems.

    Purpose of the Study:

    • To propose and demonstrate a novel compact folded Michelson interferometer (FMI) modulator.
    • To achieve high modulation efficiency and a small footprint for optical communication applications.

    Main Methods:

    • Designed a folded Michelson interferometer (FMI) modulator with reduced modulation area.
    • Utilized a shorter traveling wave electrode (TWE) to minimize radio frequency (RF) signal loss.
    • Experimentally characterized electro-optical (EO) performance, including Vπ-L, insertion loss, extinction ratio (ER), and 3-dB EO bandwidth.

    Main Results:

    • Achieved a modulation area length of only 0.25 mm.
    • Demonstrated a low Vπ-L of 0.87 V·cm at -8 V bias.
    • Reported minimum optical insertion loss of 3.7 dB and static ER over 25 dB.
    • Measured a 3-dB EO bandwidth of 17.3 GHz at -6 V bias.
    • Successfully demonstrated an OOK eye diagram up to 40 Gb/s with a 2 V driver voltage.

    Conclusions:

    • The compact FMI modulator offers high modulation efficiency and a small footprint.
    • The device shows excellent performance metrics suitable for high-speed optical communication.
    • This novel design represents a significant advancement in optical modulator technology.