Abstract
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-Pérot 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.
Original language | English (US) |
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Article number | 221111 |
Journal | Applied Physics Letters |
Volume | 104 |
Issue number | 22 |
DOIs | |
State | Published - Jun 2 2014 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)