Adaptive aberration correction based on an opto-electronic Zernike wavefront sensor and the decoupled stochastic parallel gradient descent control technique

We present performance results from an experimental adaptive system based on a recently proposed adaptive optics control technique -- the decoupled stochastic parallel gradient descent (D-SPGD) optimization technique. The system consists of an opto-electronic Zernike wave front sensor implemented with a 128x128 element LC phase modulator from Boulder Nonlinear Systems and a 127 element LC phase modulator from Meadowlark Optics used as a wave front corrector. Results demonstrate that adaptive wave front correction using the D-SPGD optimization technique can provide efficient compensation of phase distortions.

[1]  J. Spall.  Multivariate stochastic approximation using a simultaneous perturbation gradient approximation , 1992 .

[2]  Vorontsov,et al.  Adaptive optics based on analog parallel stochastic optimization: analysis and experimental demonstration , 2000, Journal of the Optical Society of America. A, Optics, image science, and vision.

[3]  Mikhail A. Vorontsov,et al.  Adaptive optics system with micromachined mirror array and stochastic gradient descent controller , 2000, SPIE Optics + Photonics.

[4]  F. Zernike.  How I discovered phase contrast. , 1955, Science.

[5]  E. W. Justh,et al.  Adaptive optics with advanced phase-contrast techniques. I. High-resolution wave-front sensing. , 2001, Journal of the Optical Society of America. A, Optics, image science, and vision.

[6]  Mikhail A. Vorontsov,et al.  Advanced phase-contrast techniques for wavefront sensing and adaptive optics , 2000, SPIE Optics + Photonics.

[7]  Jay E. Stockley,et al.  128 x 128 analog liquid crystal spatial light modulator , 1995, Defense, Security, and Sensing.

[8]  M A Vorontsov,et al.  Adaptive phase-distortion correction based on parallel gradient-descent optimization. , 1997, Optics letters.

[9]  E. W. Justh,et al.  Adaptive optics with advanced phase-contrast techniques. II. High-resolution wave-front control. , 2001, Journal of the Optical Society of America. A, Optics, image science, and vision.

[10]  Mikhail A. Vorontsov,et al.  Stochastic parallel-gradient-descent technique for high-resolution wave-front phase-distortion correction , 1998 .

[11]  R. Harrington.  Part II , 2004 .

[12]  Louise Poissant.  Part I , 1996, Leonardo.