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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 24 — Aug. 20, 2001
  • pp: 4243–4253

Microscale Adaptive Optics: Wave-Front Control with a μ-Mirror Array and a VLSI Stochastic Gradient Descent Controller

Thomas Weyrauch, Mikhail A. Vorontsov, Thomas G. Bifano, Jay A. Hammer, Marc Cohen, and Gert Cauwenberghs  »View Author Affiliations


Applied Optics, Vol. 40, Issue 24, pp. 4243-4253 (2001)
http://dx.doi.org/10.1364/AO.40.004243


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Abstract

The performance of adaptive systems that consist of microscale on-chip elements [microelectromechanical mirror (μ-mirror) arrays and a VLSI stochastic gradient descent microelectronic control system] is analyzed. The μ-mirror arrays with 5 × 5 and 6 × 6 actuators were driven with a control system composed of two mixed-mode VLSI chips implementing model-free beam-quality metric optimization by the stochastic parallel perturbative gradient descent technique. The adaptation rate achieved was near 6000 iterations/s. A secondary (learning) feedback loop was used to control system parameters during the adaptation process, further increasing the adaptation rate.

© 2001 Optical Society of America

OCIS Codes
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(230.3990) Optical devices : Micro-optical devices

Citation
Thomas Weyrauch, Mikhail A. Vorontsov, Thomas G. Bifano, Jay A. Hammer, Marc Cohen, and Gert Cauwenberghs, "Microscale Adaptive Optics: Wave-Front Control with a μ-Mirror Array and a VLSI Stochastic Gradient Descent Controller," Appl. Opt. 40, 4243-4253 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-24-4243


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References

  1. N. Maluf, An Introduction to Microelectromechanical Systems Engineering (Artech House, Norwood, Mass., 2000).
  2. M. C. Wu, “Micromachining for optical and optoelectronic systems,” Proc. IEEE 85, 1833–1856 (1997).
  3. R. L. Clark, J. R. Karpinisky, J. A. Hammer, R. B. Anderson, R. L. Lindsey, D. M. Brown, and P. H. Merritt, “Micro-opto-electro-mechanical (MOEM) adaptive optic system,” in Miniaturized Systems with Micro-Optics and Micromechanics II, M. E. Motamedi, L. J. Hornbeck, and K. S. Pister, eds., Proc. SPIE 3008, 12–24 (1997).
  4. T. G. Bifano, R. Krishnamoorthy Mali, J. K. Dorton, J. Perreault, N. Vandelli, M. N. Horenstein, and D. A. Castañon, “Continuous-membrane surface-micromachined silicon deformable mirror,” Opt. Eng. 36, 1354–1360 (1997).
  5. T. G. Bifano, J. Perrault, R. Krishnamoorthy Mali, and M. N. Horenstein, “Microelectromechanical deformable mirrors,” IEEE J. Sel. Top. Quantum Electron. 5, 83–89 (1999).
  6. J. A. Hammer, J. Karpinsky, R. L. Clark, and R. Lindsey, “Micro mirrors in adaptive optics systems,” in Proceedings of the World Automation Congress (WAC ’98), M. Jamshidi and C. W. de Silva, eds., Vol. 6 of TSI Press Series (TSI, Albuquerque, N.M., 1998), pp. 575–581.
  7. M. K. Lee, W. D. Cowan, B. M. Welsh, V. M. Bright, and M. C. Roggemann, “Aberration-correction results from a segmented microelectromechanical deformable mirror and refractive lenslet array,” Opt. Lett. 23, 645–647 (1998).
  8. G. Vdovin, S. Middelhoek, and P. M. Sarro, “Technology and applications of micromachined silicon adaptive mirrors,” Opt. Eng. 36, 1382–1390 (1997).
  9. J. H. Comtois, V. M. Bright, S. C. Gustafson, and M. A. Michalicek, “Implementation of hexagonal micromirror arrays as phase-mostly spatial light modulator,” in Microelectronic Structures and Microelectromechanical Devices for Optical Processing and Multimedia Applications, W. Bailey, M. E. Motamedi, and F.-C. Luo, eds., Proc. SPIE 2641, 76–87 (1995).
  10. J. Mansell and R. L. Byer, “Micromachined silicon deformable mirror,” in Adaptive Optical System Technologies, D. Bonaccini and R. K. Tyson, eds., Proc. SPIE 3353, 896–901 (1998).
  11. J. C. Spall, “A stochastic approximation technique for generating maximum likelihood parameter estimates,” in Proceedings of the American Control Conference (Institute of Electrical and Electronics Engineers, Piscataway, N.J., 1987), pp. 1161–1167.
  12. G. Cauwenberghs, “A fast stochastic error-descent algorithm for supervised learning and optimization,” in Advances in Neural Information Processing Systems, S. J. Hanson, J. D. Cowan, and C. L. Giles, eds. (Morgan Kaufman, San Mateo, Calif., 1993), Vol. 5, pp. 244–251.
  13. M. A. Vorontsov, G. W. Carhart, and J. C. Ricklin, “Adaptive phase-distortion correction based on parallel gradient-descent optimization,” Opt. Lett. 22, 907–909 (1997).
  14. M. A. Vorontsov and V. P. Sivokon, “Stochastic parallel gradient descent technique for high-resolution wave-front phase distortion correction,” J. Opt. Soc. Am. A 15, 2745–2758 (1998).
  15. R. T. Edwards, M. Cohen, G. Cauwenberghs, M. A. Vorontsov, and G. W. Carhart, “Analog VLSI parallel stochastic optimization for adaptive optics,” in Learning on Silicon, G. Cauwenberghs and M. A. Bazoumi, eds. (Kluwer Academic, Boston, Mass., 1999), pp. 359–382.
  16. M. A. Vorontsov, G. W. Carhart, M. Cohen, and G. Cauwenberghs, “Adaptive optics based on analog parallel stochastic optimization: analysis and experimental demonstration,” J. Opt. Soc. Am. A 17, 1440–1453 (2000).
  17. A. Tuantranont, V. M. Bright, W. Zhang, and Y. C. Lee, “Flip chip integration of lenslet arrays on segmented deformable micromirrors,” in Design, Test, and Microfabrication of MEMS and MOEMS, B. Courtois, S. B. Crary, W. Ehrfeld, H. Fujita, J.-M. Karam, and K. W. Markus, eds., Proc. SPIE 3680, 668–678 (1999).
  18. M. C. Roggeman, V. M. Bright, B. M. Welsh, S. R. Hick, P. C. Roberts, W. D. Cowan, and J. H. Comtois, “Use of micro-electro-mechanical deformable mirrors to control aberrations in optical systems: theoretical and experimental results,” Opt. Eng. 36, 1326–1338 (1997).
  19. L. Zhu, P.-C. Sun, D.-U. Bartsch, W. R. Freeman, and Y. Fainman, “Adaptive control of a micromachined continuous-membrane deformable mirror for aberration compensation,” Appl. Opt. 38, 168–176 (1999).
  20. S. Grossberg, “Nonlinear neural networks: principles, mechanisms, and architectures,” Neural Networks 1, 17–61 (1988).

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