21 July 2014 Very low noise Shack-Hartmann wavefront sensor for adaptive optics in the near-IR
Author Affiliations +
Near-Infrared wave front sensing allows to enhance sky coverage with adaptive optics. The recently developed HgCdTe avalanche photodiode arrays are promising, but still present an unperfect cosmetic. After the fine characterization of such a HgCdTe array, we propose a statistical model of the pixel response. Assuming the cosmetic is partially corrected, we simulate the impact of the residual error on a Shack-Hartmann wavefront sensor measurement. The study shows the operability of such a real time correction, and of the HgCdTe APD array characterized in this framework: the RAPID camera.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Silvère Gousset, Silvère Gousset, Clélia Robert, Clélia Robert, Thierry Fusco, Thierry Fusco, Vincent Michau, Vincent Michau, Cyril Petit, Cyril Petit, Sophie Derelle, Sophie Derelle, Joel Deschamps, Joel Deschamps, Philippe Feautrier, Philippe Feautrier, Eric Stadler, Eric Stadler, Eric D. de Borniol, Eric D. de Borniol, Johan Rothman, Johan Rothman, Jérôme Coussement, Jérôme Coussement, "Very low noise Shack-Hartmann wavefront sensor for adaptive optics in the near-IR", Proc. SPIE 9148, Adaptive Optics Systems IV, 91481A (21 July 2014); doi: 10.1117/12.2057712; https://doi.org/10.1117/12.2057712

Back to Top