The MROI fringe tracker: closing the loop on ICoNN
Proceedings of SPIE(2012)
摘要
The characterization of ICoNN, the Magdalena Ridge Observatory Interferometer's fringe tracker, through laboratory simulations is presented. The performance limits of an interferometer are set by its ability to keep the optical path difference between combination partners minimized. This is the job of the fringe tracker. Understanding the behavior and limits of the fringe tracker in a controlled environment is key to maximize the science output. This is being done with laboratory simulations of on-sky fringe tracking, termed the closed-loop fringe experiment. The closed-loop fringe experiment includes synthesizing a white light source and atmospheric piston with estimation of the tracking error being fed back to mock delay lines in real-time. We report here on the progress of the closed-loop fringe experiment detailing its design, layout, controls and software.
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关键词
MROI,optical interferometry,fringe tracker,fringe tracking
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