Optical spring tracking for enhancing quantum-limited interferometers
by quantum noise, comprising radiation pressure and shot noise. To
mitigate this noise, a static system is employed that minimizes the
quantum noise within the measurement band. However, since
gravitational wave inspiral signals are a single frequency changing
over time, only noise at the chirp frequency needs to be minimized.
Here we demonstrate a proof-of-principle experiment of dynamically
tracking a target signal using an optical spring, resulting in an
increased signal-to-noise ratio (SNR). By injecting white noise to
simulate excess shot noise, we found the SNR increased by up to a
factor of 40 via dynamical tracking when compared to a static
configuration.
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J Aasi, B. P. Abbott, R. Abbott et al.
F Acernese, M Agathos, K Agatsuma et al.
B. P. Abbott, R. Abbott, T. D. Abbott et al.
Thomas Corbitt, Yanbei Chen, Nergis Mavalvala
Jonathan Cripe, Nancy Aggarwal, Robert Lanza et al.
- Published
- Dec 04, 2024
- Vol/Issue
- 49(24)
- Pages
- 6980
- License
- View
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