Progress on Laser Gauge Interferometer (LIG-A) for high resolution accelerometers
2019
We present the design and preliminary results of an accelerometer based on a classical mass spring mechanical system with an interferometric readout. The heterodyne interferometer is based on a 1064 nm fiber laser source, all fiber components and reaches resolutions of less than 1 pm/√Hz at 1 Hz and about 200 pm/√Hz at 1 mHz.
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