Adaptive Optics with Advanced Phase-contrast Techniques: Part II. High-resolution Wavefront Control
Journal of the Optical Society of America A
A wave-front control paradigm based on gradient-flow optimization is analyzed. In adaptive systems with gradient-flow dynamics, the output of the wave-front sensor is used to directly control high-resolution wave-front correctors without the need for wave-front phase reconstruction (direct-control systems). Here, adaptive direct-control systems with advanced phase-contrast wave-front sensors are analyzed theoretically, through numerical simulations, and experimentally. Adaptive system performance is studied for atmospheric- turbulence-induced phase distortions in the presence of input field intensity scintillations. The results demonstrate the effectiveness of this approach for high-resolution adaptive optics.
Copyright © 2001, Optical Society of America
Optical Society of America
Justh, Eric W.; Vorontsov, Mikhail; Carhart, Gary W.; Beresnev, Leonid A.; and Krishnaprasad, P. S., "Adaptive Optics with Advanced Phase-contrast Techniques: Part II. High-resolution Wavefront Control" (2001). Electro-Optics and Photonics Faculty Publications. 120.