Wide-band dual optomechanical resonator for inertial navigation

Lee A. Capistran; Adam Hines; Jonathan Joseph Carter; Xiangyu Guo; Guillermo Valdes; Jose Sanjuan; Felipe Guzman

doi:10.1117/12.2655504

8 March 2023 Wide-band dual optomechanical resonator for inertial navigation

Lee A. Capistran, Adam Hines, Jonathan Joseph Carter, Xiangyu Guo, Guillermo Valdes, Jose Sanjuan, Felipe Guzman

Proceedings Volume 12447, Quantum Sensing, Imaging, and Precision Metrology; 1244718 (2023) https://doi.org/10.1117/12.2655504
Event: SPIE Quantum West, 2023, San Francisco, California, United States

Abstract

Accelerometers are key sensors in many fields and applications such as precision metrology, gravimetry measurements, gravitational wave observatories, and navigation where position and attitude need to be determined accurately. A combination of six accelerometers provides all the necessary information to estimate position and orientation of a rigid body and thus serves as an inertial navigation system for autonomous navigation. Fusedsilica based mechanical resonators paired with laser interferometric read-outs enable compact high-accuracy accelerometers. In this talk, we will present a wide-band accelerometer based on a double resonator with two test masses of different sizes in a single frame. One of the resonators has a resonance frequency of about 50 Hz, while the other is optimized for lower frequencies and has a nominal frequency of about 10 Hz. The combination of the two resonators allows for excellent long-term precision while maintaining good measurement bandwidth. We will show the experimental characterization in air and in vacuum of the double-resonator using a heterodyne laser interferometer and a fiber interferometer and its expected performance as an inertial sensor.

Conference Presentation

Citation Download Citation

Lee A. Capistran, Adam Hines, Jonathan Joseph Carter, Xiangyu Guo, Guillermo Valdes, Jose Sanjuan, and Felipe Guzman "Wide-band dual optomechanical resonator for inertial navigation", Proc. SPIE 12447, Quantum Sensing, Imaging, and Precision Metrology, 1244718 (8 March 2023); https://doi.org/10.1117/12.2655504

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