TY - JOUR
T1 - Time evolution of parametric instability in large-scale gravitational-wave interferometers
AU - Danilishin, Stefan
AU - Vyatchanin, S.P.
AU - Blair, David
AU - Ju, Li
AU - Zhao, Chunnong
PY - 2014/12/29
Y1 - 2014/12/29
N2 - © 2014 American Physical Society. We present a study of three-mode parametric instability in large-scale gravitational-wave detectors. Previous work used a linearized model to study the onset of instability. This paper presents a nonlinear study of this phenomenon, which shows that the initial stage of an exponential rise of the amplitudes of a higher-order optical mode and the mechanical internal mode of the mirror is followed by a saturation phase, in which all three participating modes reach a new equilibrium state with constant oscillation amplitudes. Results suggest that stable operation of interferometers may be possible in the presence of such instabilities, thereby simplifying the task of suppression.
AB - © 2014 American Physical Society. We present a study of three-mode parametric instability in large-scale gravitational-wave detectors. Previous work used a linearized model to study the onset of instability. This paper presents a nonlinear study of this phenomenon, which shows that the initial stage of an exponential rise of the amplitudes of a higher-order optical mode and the mechanical internal mode of the mirror is followed by a saturation phase, in which all three participating modes reach a new equilibrium state with constant oscillation amplitudes. Results suggest that stable operation of interferometers may be possible in the presence of such instabilities, thereby simplifying the task of suppression.
U2 - 10.1103/PhysRevD.90.122008
DO - 10.1103/PhysRevD.90.122008
M3 - Article
SN - 1550-7998
VL - 90
SP - 122008
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 12
ER -