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Fig. 9


Control modes inner product matrices characterizing the orthogonality properties of the implementation of the APF-WFS described in this paper on SCExAO. From left to right: 1. the mostly perfectly diagonal case of the Zernike polynomials basis; 2. the seemingly identical inner product matrix for the theoretical modes after reconstrucion by the linear model and filtering by the SVD; and 3. the inner product matrix for the experimentally reconstructed modes. The overall diagonal allure of the latter characterizes the sensor as suited to the control of the low-order Zernike modes. Numerical values for the experimental inner products are provided in Table 2.

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