Canada-France-Hawaii Telescope adaptive optics bonnette II: simulations and control

Francois J. Rigaut; Robin Arsenault; John M. Kerr; Derrick A. Salmon; Malcolm J. Northcott; Yvan Dutil; Corinne Boyer

doi:10.1117/12.176039

31 May 1994 Canada-France-Hawaii Telescope adaptive optics bonnette II: simulations and control

Francois J. Rigaut, Robin Arsenault, John M. Kerr, Derrick A. Salmon, Malcolm J. Northcott, Yvan Dutil, Corinne Boyer

Proceedings Volume 2201, Adaptive Optics in Astronomy; (1994) https://doi.org/10.1117/12.176039
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994, Kailua, Kona, HI, United States

Abstract

We report on the results of the system simulation software written at Canada-France-Hawaii Telescope, to predict and optimize the performance of our adaptive optics bonnette presently under construction. The individual simulation elements, atmospheric simulator, curvature sensor, bimorph mirror and control loop, are reviewed with an emphasis on the basic properties of curvature sensors. Optimization of the extra-focal distance parameter and its consequences are discussed. We then present results of whole system simulations, and quantify the main sources of error. Some results, including noise, are reported. In a second part, we present our view of modal control and detail the construction of the modal basis. We also report briefly on modal gain optimization.

Citation Download Citation

Francois J. Rigaut, Robin Arsenault, John M. Kerr, Derrick A. Salmon, Malcolm J. Northcott, Yvan Dutil, and Corinne Boyer "Canada-France-Hawaii Telescope adaptive optics bonnette II: simulations and control", Proc. SPIE 2201, Adaptive Optics in Astronomy, (31 May 1994); https://doi.org/10.1117/12.176039

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