Influence Function Measurement of Continuous Membrane Deformable Mirror Actuators Using Shack Hartmann Sensor

Abstract

The characterization of a continuous membrane deformable mirror (CDM) involves the measurement of influence function, which quantifies the response of individual actuators to application of different voltages. In this paper, we present the results of influence function measurement for a 140-actuator CDM using a Shack Hartmann sensor (SHS). The measured influence function was fitted using a Gaussian function and also decomposed into Zernike moments. The SHS-CDM interaction matrix was also computed