Speaker
Description
Optical aberrations represent a major sensitivity bottleneck for current and future gravitational wave interferometers, as they limit stable operation at the high optical powers required to reduce quantum noise.
The non axisymmetric component of these aberrations is not currently corrected in Advanced GW detectors, since its impact remains negligible at present power levels. However, with next generation instruments such as ET HF targeting circulating powers of up to 3 MW, the development of an advanced and adaptive wavefront control system capable of actively compensating these distortions becomes essential.
In this talk, the latest results on actuators for correcting non axisymmetric aberrations will be presented, together with an outlook on possible future developments.