Abstract: Inertial Sensors and Inertial Measurement Units are provided. In one example, the chip-scale inertial sensor (CSIS) is for detecting a rate of rotation of the CSIS about an axis. The CSIS comprises an optical vibratory gyroscope (OVG) for detecting a first rate of rotation of the CSIS about the axis. The OVG is configured to output a main signal corresponding to the first rate of rotation. The CSIS further comprises an optical Sagnac gyroscope (OSG) for concurrently detecting a second rate of rotation of the CSIS about the axis. The OSG is configured to output a supplementary signal corresponding to the second rate of rotation. The CSIS further comprises a microcontroller configured to receive one or more inputs based on the main signal and supplementary signal, and to determine, based on the one or more inputs, a corrected first rate of rotation of the CSIS about the axis.

Abstract: Inertial Sensors and Inertial Measurement Units are provided. In one example, the chip-scale inertial sensor (CSIS) is for detecting a rate of rotation of the CSIS about an axis. The CSIS comprises an optical vibratory gyroscope (OVG) for detecting a first rate of rotation of the CSIS about the axis. The OVG is configured to output a main signal corresponding to the first rate of rotation. The CSIS further comprises an optical Sagnac gyroscope (OSG) for concurrently detecting a second rate of rotation of the CSIS about the axis. The OSG is configured to output a supplementary signal corresponding to the second rate of rotation. The CSIS further comprises a microcontroller configured to receive one or more inputs based on the main signal and supplementary signal, and to determine, based on the one or more inputs, a corrected first rate of rotation of the CSIS about the axis.

Abstract: Inertial Sensors and Inertial Measurement Units are provided. In one example, the inertial sensor comprises one or more microresonators, each microresonator supporting a corresponding optical resonance. The inertial sensor further comprises a micro-electro-mechanical inertial test mass suspended adjacent to and non-contiguous with the one or more microresonators, the test mass deflectable under the application of an inertial force. The inertial sensor further comprises one or more electrodes for counteracting a deflection of the test mass with an electrostatic force. The inertial sensor further comprises one or more optical couplers for coupling light into and out of a corresponding microresonator. The inertial sensor further comprises one or more detectors for detecting light received from the one or more microresonators by the one or more optical couplers.