High sensitivity optomechanical reference accelerometer over 10 kHz

By F. G. Cervantes, L. Kumanchik, Jon R. Pratt, Jacob M. Taylor. 2013

157 citations recorded by the source corpus.

We present an optically detected mechanical accelerometer that achieves a sensitivity of 100 ngn/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 200 am/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.

Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Ocean Engineering

View Paper: https://www.semanticscholar.org/paper/78adf712c97a73be1a358f94168200341a5f2e23