Carrier mode selective working point and side band imbalance in LIGO I (2006)
D'Ambrosio, Erika, Kells, William
In gravitational wave interferometers, the input laser beam is phase modulated to generate radio-frequency side bands that are used to lock the cavities. The mechanism is the following: the frequency...
Ottaway, David, Betzwieser, Joseph, Ballmer, Stefan, Waldman, Sam, Kells, William
We present a simple technique to make in situ measurements of the absorption in the optics of high-power laser interferometers. The measurement is particularly useful to those commissioning...
Beausoleil, Raymond G., Gustafson, Eric K., Fejer, Martin M., D'Ambrosio, Erika, Kells, William, Camp, Jordan
We develop a steady-state analytical and numerical model of the optical response of power-recycled Fabry-Perot Michelson laser gravitational-wave detectors to nonlinear thermal focusing in optical...
Measurement of Birefringence of Low-Loss, High-Reflectance Coating of M-Axis Sapphire (2001)
Camp, Jordan B., Kells, William, Fejer, Martin M., Gustafson, Eric
The birefringence of a low-loss, high-reflectance coating applied to an 8-cm-diameter sapphire crystal grown in the m-axis direction has been mapped. By monitoring the transmission of a high-finesse...