Compensation Techniques Aimed at Mitigating Vibrations in Optical Ground-Based Telescopes: A Systematic Review

Abstract

The objective of this study was to evaluate the performance of the different systems and techniques aimed at suppressing vibrations on optical ground-based telescopes. We identified the studies by searching three electronic databases (Science Direct, IEEE library and Web of Science) from the year 2000 to December 2020. The studies were eligible if they proposed systems focused on mitigating the effects of vibrations in optical telescopes and brought performance data. A total of nine studies met our eligibility criteria. Current evidence confirms the feasibility of adaptative optics (AO) systems based on closed-loop control to mitigate vibrations, although variations and additions should be made depending on their nature and characteristics in order to improve the performance of the proposed techniques. This systematic review was conducted to provide a state-of-the-art of the methods and techniques that have been developed over the past two decades. The review also points out some issues that demand future research.

Developing an error budget for the nonlinear curvature wavefront sensor

“…To prevent overheating from electronics, high-speed detectors often require active or passive cooling that can cause vibrations. For example, cryogenic cooling was found to cause vibrations at 60 Hz in the Gemini Planet Imager 23 . We assume that the detector vibrations occur on timescales longer than the WFS integration time and, thus, translate the detector and its connected optics off the optical axis.…”

“…For example, cryogenic cooling was found to cause vibrations at 60 Hz in the Gemini Planet Imager. 23 We assume that the detector vibrations occur on timescales longer than the WFS integration time and, thus, translate the detector and its connected optics off the optical axis. For the nlCWFS, we model vibrations by translating the beam across the detector surface.…”