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Broadband source-driven resonant micro-optic gyroscope based on a multi-turn waveguide-type ring resonator.

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    Optics Letters
    |March 1, 2023
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    Summary
    This summary is machine-generated.

    This study demonstrates a chip-scale resonant micro-optic gyroscope (RMOG) achieving 1°/h bias stability. The multi-turn waveguide-type ring resonator design enhances sensitivity and reduces noise for improved performance.

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    Area of Science:

    • Optoelectronics
    • Photonics
    • Inertial Sensing

    Background:

    • Resonant micro-optic gyroscopes (RMOGs) are key for chip-scale inertial sensing.
    • Traditional designs face challenges with bias stability and noise.

    Purpose of the Study:

    • To develop a broadband source-driven RMOG with enhanced bias stability and reduced noise.
    • To investigate the impact of multi-turn waveguide-type ring resonators (WRRs) on gyroscope performance.

    Main Methods:

    • Utilized a multi-turn waveguide-type ring resonator (WRR) in the RMOG design.
    • Employed a broadband light source to mitigate parasitic backscattering.
    • Optimized the number of WRR turns to minimize relative intensity noise (RIN) effects.

    Main Results:

    • Achieved a bias stability of 1°/h using a 5-turn WRR (4.05 cm diameter).
    • Improved angle random walk (ARW) by 4.8 dB compared to a single-turn WRR.
    • Demonstrated tactical-grade resolution for a chip-scale optoelectronic gyroscope.

    Conclusions:

    • The multi-turn WRR design significantly enhances RMOG performance.
    • Broadband sources effectively resolve backscattering and improve bias stability.
    • This RMOG represents a significant advancement in chip-scale inertial sensing technology.