Optical design of the proposed Australian International Gravitational Observatory.
Marginally stable power recycling cavities are being used by nearly all interferometric gravitational wave detectors.With stability factors very close to unity the frequency separation of the higher order optical modes is smaller than the cavity bandwidth. As a consequence these higher order modes will resonate inside the cavity distorting the spatial mode of the interferometer control sidebands. Without losing generality we study and compare two designs of stable power recycling cavities for the proposed 5 kilometer long Australian International Gravitational Observatory (AIGO), a high power advanced interferometric gravitational wave detector. The length of various optical cavities that form the interferometer and the modulation frequencies that generate the control sidebands are also selected.
Barriga
Pablo
P
School of Physics, The University of Western Australia, Crawley, WA 6009. pbarriga@cyllene.uwa.edu.au
Arain
Muzammil A
MA
Mueller
Guido
G
Zhao
Chunnong
C
Blair
David G
DG
D001315:Australia; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006112:Gravitation; D007368:Interferometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014159:Transducers