| Popis: |
BATC has developed a laboratory testbed specifically designed to evaluate the relative merits of wavefront sensing and correction algorithms for active optical systems. The testbed includes a point source, a segmented aperture input with four independently alignable rigid segments, and a sensor assembly that simultaneously provides numerous wavefront and image sensing capabilities. This Wavefront Control Testbed has been used to conduct a series of experiments designed to compare and quantify various techniques for measuring and removing the wavefront errors in a segmented aperture optical system. The results of these experiments are used to support the top-level definition of the wavefront control system that can be used for ensuring the optical performance of large space-based observatories such as the Next Generation Space Telescope. A short description of the experimental parameters and results is presented, along with the expected future use of the testbed. |
