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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 29 — Oct. 10, 2011
  • pp: 5647–5654

Double drive modes unimorph deformable mirror for low-cost adaptive optics

Jianqiang Ma, Ying Liu, Ting He, Baoqing Li, and Jiaru Chu  »View Author Affiliations


Applied Optics, Vol. 50, Issue 29, pp. 5647-5654 (2011)
http://dx.doi.org/10.1364/AO.50.005647


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Abstract

This paper reports the development and characterization of a low-cost thin unimorph deformable mirror (DM) driven by positive voltage. The developed DM consists of both an inner actuator array and an outer ring actuator, which works two drive modes: the inner actuator array is used for aberration correction, while the outer ring actuator is used to generate an overall defocus bias. An analytical model based on the theory of plates and shells is studied for predicting the behavior of the developed DM. Measurement results indicate that dual direction maximum defocus deformations of the developed DM are 14.3 and 14.9 μm , respectively, and the resonant frequency is 1.8 kHz . The root-mean-square deformation of the mirror surface after correction is better than λ / 20 for λ = 633 nm . The replication of Zernike mode shapes up to the fifth order demonstrates that this developed DM is satisfactory for low-order aberration correction.

© 2011 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(080.1010) Geometric optics : Aberrations (global)
(010.1285) Atmospheric and oceanic optics : Atmospheric correction
(230.4685) Optical devices : Optical microelectromechanical devices
(220.1080) Optical design and fabrication : Active or adaptive optics

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: May 12, 2011
Revised Manuscript: July 30, 2011
Manuscript Accepted: August 26, 2011
Published: October 4, 2011

Citation
Jianqiang Ma, Ying Liu, Ting He, Baoqing Li, and Jiaru Chu, "Double drive modes unimorph deformable mirror for low-cost adaptive optics," Appl. Opt. 50, 5647-5654 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-29-5647

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