In situ measurement of absorption in high-power interferometers by using beam diameter measurements.
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 large-scale high power optical systems.
LIGO Laboratory, Massachusetts Institute of Technology, MIT NW17-161, 175 Albany Street, Cambridge, Massachusetts 02139, USA. ottaway@ligo.mit.edu
David
D
Ottaway
Joseph
J
Betzwieser
Stefan
S
Ballmer
Sam
S
Waldman
William
W
Kells