714 citations · 1.9k across the 27 of their papers we have counts for
17 papers · 1 filter
Laboratory Demonstration of Optimal Identification and Control of Tip-Tilt Systems
Aditya R. Sengupta, Benjamin L. Gerard, Daren Dillon +3
We present the results of testing optimal linear-quadratic-Gaussian (LQG) control for tip and tilt Zernike wavefront modes on the SEAL (Santa cruz Extreme AO Lab) testbed. The cont…
Ground Layer Adaptive Optics for the W. M. Keck Observatory: Feasibility Study
J. R. Lu, M. Chun, S. M. Ammons +12
Ground-layer adaptive optics (GLAO) systems offer the possibility of improving the "seeing" of large ground-based telescopes and increasing the efficiency and sensitivity of observ…
Point Spread Function for Ground Layer Adaptive Optics
Donald Gavel
A ground-layer adaptive optics system (GLAO) uses a single adaptive mirror to partially correct the wavefront for atmospheric and telescope aberrations over a wide field of view. I…
Towards optimization of pulsed sodium laser guide stars
Rachel Rampy, Donald Gavel, Simon M. Rochester +1
Pulsed sodium laser guide stars (LGS) are useful because they allow for Rayleigh blanking and fratricide avoidance in multiple-LGS systems. Bloch-equation simulations of sodium-lig…
A laboratory demonstration of an LQG technique for correcting frozen flow turbulence in adaptive optics systems
Alexander Rudy, Lisa Poyneer, Srikar Srinath +2
We present the laboratory verification of a method for re- moving the effects of frozen-flow atmospheric turbulence using a Linear Quadratic Gaussian (LQG) controller, also known a…
Opto-Mechanical Design of ShaneAO: the Adaptive Optics System for the 3-meter Shane Telescope
Christopher Ratliff, Jerry Cabak, Donald Gavel +8
A Cassegrain mounted adaptive optics instrument presents unique challenges for opto-mechanical design. The flexure and temperature tolerances for stability are tighter than those o…