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Performance of large-format deformable mirrors constructed with hybrid variable reluctance actuators III: laboratory measurements of dynamic behavior
1 : University of California [Santa Cruz]
1156 High Street, Santa Cruz, Ca 95064 -
United States
2 : TNO [Delf]
Delft, the Netherlands Radboud University Nijmegen Nijmegen, the Netherlands -
Netherlands
Advancements in high-efficiency hybrid-variable reluctance actuators are an enabling technology for building the next generation of large-format deformable mirrors, including adaptive secondary mirrors. In this paper, we evaluate the dynamic performance of two deformable mirror technologies constructed by The Netherlands Organization for Applied Research (TNO) in the context of future use in extreme adaptive optics systems: the 19-actuator FLASH deformable mirror and the DM16 axially symmetric 16mm-pitch actuator. We achieved high-speed measurements (1kHz) utilizing both capacitive sensors and the Quadrature Polarization Interferometer located at the UC Santa Cruz Laboratory for Adaptive Optics.
