Abstract
Adaptive Optics is an essential technology in today's large telescopes to compensate for atmospheric turbulence. Deformable Mirrors have many actuators(>10k), large stroke(>10mu), small spacing(100Hz).The well known use of piezoelectric ceramics has led to inappropriately stiff displacement actuators. However using force actuation, piezo's are superseded in performance, longevity and cost (factor 10-20 per channel).Regardless of the actuator type used, a model is presented for actuation of continuous facesheet mirrors to study its parameters. The model is validated using finite element simulations and is used to derive design fundamentals for optimization.
| Original language | English |
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| Title of host publication | SPIE Optics & Photonics 2009; Advanced Wavefront Control: Methods, Devices, and Applications VII |
| Place of Publication | United States, San Diego |
| Publisher | SPIE |
| Pages | 74660G-1/8 |
| DOIs | |
| Publication status | Published - 2009 |