KEYWORDS: Field programmable gate arrays, Mirrors, Photodiodes, Data communications, Zernike polynomials, Wavefronts, Laser systems engineering, Turbulence, Data conversion, Wavefront sensors
We present an adaptive optical system to stabilize the position of a laser beam passed through the turbulent atmosphere. The system uses two tip-tilt mirrors and is controlled by an FPGA to increase the bandwidth. An internal FPGA structure is presented. FPGA reads the error signal from the sensors formed by quadrant photodiodes and calculates the voltages to be applied to the piezo-driven tip-tilt mirrors by the control units.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.