High Sensitivity Optomechanical Reference Accelerometer Over 10 kHz

Published

June 5, 2014

Author(s)

Felipe Guzman, Lee M. Kumanchik, Jon R. Pratt, Jacob M. Taylor

Abstract

We present an optically detected mechanical accelerometer that achieves a sensitivity of 100 ng/√Hz over a bandwidth of 10 kHz and is traceable. We have incorporated a Fabry-Perot fiber-optic micro-cavity that is currently capable of measuring the test-mass displacement with sensitivities of 200am/√Hz, and whose length determination enables traceability to the International System of Units. The compact size and high mQ-product achieved combined with the high sensitivity and simplicity of the implemented optical detection scheme highlight our device and this category of accelerometers, outlining a path for high sensitivity reference acceleration measurements and observations in seismology and gravimetry

Citation

Applied Physics Letters

Volume

104

Pub Type

Journals

Download Paper

DOI Link

Keywords

opto mechanic cavity Fabry Perot micro electro system feedback cooling backaction spectral density fiber fused silica quartz high q

Citation

Guzman, F. , Kumanchik, L. , Pratt, J. and Taylor, J. (2014), High Sensitivity Optomechanical Reference Accelerometer Over 10 kHz, Applied Physics Letters, [online], https://doi.org/10.1063/1.4881936 (Accessed December 6, 2024)