Hysteresis correction in the curvature adaptive optics system
JOSA A, Vol. 22, Issue 1, pp. 142-147 (2005)
http://dx.doi.org/10.1364/JOSAA.22.000142
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Abstract
An enhancing Coleman-Hodgdon model is introduced to describe the hysteresis curves of the bimorph deformable mirror (DM). Hysteresis curves are measured from a bimorph DM and then experiment is set up for the correction of hysteresis. Finally, step response and transfer functions of a curvature adaptive optics (AO) system are compared in three cases: with DM hysteresis, without hysteresis, and with hysteresis but corrected. Simulation results show that the bandwidth of a curvature AO system is improved significantly under different loop gains after hysteresis of the DM is corrected.
© 2005 Optical Society of America
Citation
Qiang Yang, Christ Ftaclas, Mark Chun, and Douglas Toomey, "Hysteresis correction in the curvature adaptive optics system," J. Opt. Soc. Am. A 22, 142-147 (2005)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-22-1-142
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