Description |
We are entering an exciting era in which gravitational waves can be detected routinely. The advanced LIGO interferometers
reached a strain sensitivity of 8e-24/sqrtHz at around 100 Hz which allowed us for detecting GW150914. To get to such high
sensitivity, advanced LIGO had to conquer a number of technical challenges in its interferometric control. In this talk,
I will talk about lock acquisition of the advanced LIGO interferometers, which had been a big concern but is now largely
addressed by introducing auxiliary 532 nm lasers, and various
simulation studies in an effort to achieve low noise and stable control of the interferometers
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