Cavity optomechanical vibratory gyroscope

A cavity optomechanical vibratory gyroscope, comprising:

• a driving micro-nano optical fiber (1), a driving ring cavity (2), a connecting structure (3), a sensitive ring cavity (4), a supporting structure (5), a base (6) and a detecting micro-nano optical fiber (7),
• wherein the supporting structure (5) is provided on the base (6), and configured to be connected to and support the driving ring cavity (2);
• the driving ring cavity (2) and the sensitive ring cavity (4) are three-dimensional dual-ring resonant cavity structures and are connected with each other by the connecting structure (3), and a distance between the driving ring cavity (2) and the sensitive ring cavity (4) is adjustable through the connecting structure (3);
• the driving micro-nano optical fiber (1) is coupled with the driving ring cavity (2), the detecting micro-nano optical fiber (7) is coupled with the sensitive ring cavity (4), the driving ring cavity (2) is a driving vibratory structure of the gyroscope, and the sensitive ring cavity (4) is an angular velocity sensitive vibratory structure of the gyroscope;
• the driving micro-nano optical fiber (1) is configured to couple driving light into the driving ring cavity (2), and the driving ring cavity (2) is configured to generate a whispering gallery mode (WGM) resonance with an optical signal meeting a resonance condition;
• the connecting structure (3) is configured to transmit a vibration of the driving ring cavity (2) to the sensitive ring cavity (4), and the sensitive ring cavity (4) is configured to receive a to-be-detected angular velocity Ωz input along a Z-axis direction, the Z-axis direction being perpendicular to a plane comprising a centerline of the sensitive ring cavity (4), whereby the sensitive ring cavity (4) generates a Coriolis force along an X direction and generates a mechanical vibration along the X direction under the Coriolis force;
• and
• light from the sensitive ring cavity (4) is coupled into the detecting micro-nano optical fiber (7) for optical detecting.