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Novel tip-tilt sensing strategies for the laser tomography adaptive optics system of the GMT
2016
Adaptive Optics Systems V
We investigate the tip-tilt sensor for the laser tomography adaptive optics system of the Giant Magellan Telescope. In the case of the GMTIFS instrument, we require high Strehl over a moderate region of the sky and high throughput with very high sky coverage. In this paper, we simulate the performance of a K-band tip-tilt sensor using an eAPD array. The paper presents a comparison of different centroiding techniques and servo controllers. In addition, we explore the possibility of using the
doi:10.1117/12.2231143
fatcat:xnzuboulxrccvoy7vsmvi23zym