Wavefront Phase Sensors Using Optically or Electrically Controlled Phase Spatial Light Modulators

Abstract

Systems for optical wavefront sensing and control based on a phase contrast Fourier domain filtering technique. Optically or electronically controlled phase spatial light modulators (SLM) are used as the Fourier domain filter. A direct adaptive-optic feedback system using the optical wavefront sensing systems. A differential Zernike filter is also disclosed.

U.S. Patent and Trademark Office Description

PTO

Inventor(s)

P. S. Krishnaprasad, Eric Justh, Leonid Beresnev, Jennifer Ricklin, Mikhail Vorontsov

Date Issued

06/28/2005

Patent No.

6,911,637