AO4ELT5 Proceedings

Understanding the Vibration Environment for LBT/AO

Escárate, Pedro (Large Binocular Telescope Observatory), Christou, Julian C. (Large Binocular Telescope Observatory), Rahmer, Gustavo (Large Binocular Telescope Observatory), Miller, Doug L. (Large Binocular Telescope Observatory), Hill, John M. (Large Binocular Telescope Observatory)

The majority of current Adaptive Optics (AO) systems do not properly compensate for vibrations within the optical path. For this reason the mitigation of vibration effects in astronomical AO systems is extremely important. A key component of AO operations is the implementation of techniques to improve the mitigation of vibrations in the AO system. We are in the process of characterizing the LBT AO vibration environment through frequency-based analysis of the closed-loop data, i.e. residual tip-tilt, and accelerometers measurements on key optical components. In this work we describe the vibration environment of the LBT and possible strategies to minimize the effect of the vibrations in the AO performance.

DOI: 10.26698/AO4ELT5.0164- Proceeding PDF

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