Active noise cancellation in a suspended interferometer
Name
Evans_Active noise.pdf
Size
1.38 MB
Format
Adobe PDF
Checksum (MD5)
460cee9dac88ab9f97bfe6ef0b100601
Author(s)
Driggers, J. C.
Pepper, Keenan
Adhikari, Rana X.
Evans, Matthew J.
Date Issued
February 2012
Journal
Review of Scientific Instruments
Publisher
American Institute of Physics (AIP)
Citation
Driggers, Jennifer C., Matthew Evans, Keenan Pepper, and Rana Adhikari. “Active Noise Cancellation in a Suspended Interferometer.” Review of Scientific Instruments 83, no. 2 (2012): 024501.
Version
Original manuscript
Abstract
We demonstrate feed-forward vibration isolation on a suspended Fabry-Perot interferometer using Wiener filtering and a variant of the common least mean square adaptive filter algorithm. We compare the experimental results with theoretical estimates of the cancellation efficiency. Using data from the recent Laser InterferometerGravitational Wave Observatory (LIGO) Science Run, we also estimate the impact of this technique on full scale gravitational waveinterferometers. In the future, we expect to use this technique also to remove acoustic, magnetic, and gravitational noise perturbations from the LIGOinterferometers. This noise cancellation technique is simple enough to implement in standard laboratory environments and can be used to improve signal-to-noise ratio for a variety of high precision experiments.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1063/1.3675891
