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Chinese Journal of Lasers, Volume. 45, Issue 9, 905002(2018)

Influence of Fatigue Characteristics of Piezoelectric Ceramics Actuators on Correction Ability of Deformable Mirror

Luo Shuai, Wang Jiaqiu, and Zhang Bin
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    Figures&Tables (7)
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    Figures & Tables(7)
    Fundamental structure of DM

    Fig. 1. Fundamental structure of DM

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    Flow chart of simulation

    Fig. 2. Flow chart of simulation

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    Distorted wavefront and fitted surface shape. (a) Distorted wavefront; (b) ideal fitted surface shape of DM obtained by simulation

    Fig. 3. Distorted wavefront and fitted surface shape. (a) Distorted wavefront; (b) ideal fitted surface shape of DM obtained by simulation

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    Residual wavefronts corrected by DM before and after occurrence of fatigue in actuators. (a) Before; (b) after

    Fig. 4. Residual wavefronts corrected by DM before and after occurrence of fatigue in actuators. (a) Before; (b) after

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    Curves of fatigue degree. (a) Electromechanical coupling factor[9]; (b) beam quality after DM correction

    Fig. 5. Curves of fatigue degree. (a) Electromechanical coupling factor[9]; (b) beam quality after DM correction

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    • Table 1. Correction performances of DM before and after occurrence of fatigue in actuators under different PV values of distorted wavefront and quality comparison of corrected beams

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      Table 1. Correction performances of DM before and after occurrence of fatigue in actuators under different PV values of distorted wavefront and quality comparison of corrected beams

      Parameter of correction ability3.18 μm6.63 μm9.54 μm
      BeforefatigueAfterfatigueBeforefatigueAfterfatigueBeforefatigueAfterfatigue
      PV value of fitting surface /μm2.861.865.723.728.595.58
      PV value of residual wavefront /μm0.911.481.822.972.724.46
      β1.081.141.162.112.423.21

    • Table 2. Correction performances of DM before and after occurrence of fatigue in actuators under different proportions of surface shape high frequency and quality comparison of corrected beams

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      Table 2. Correction performances of DM before and after occurrence of fatigue in actuators under different proportions of surface shape high frequency and quality comparison of corrected beams

      Parameter of correction ability0.31%1.90%3.61%
      BeforefatigueAfterfatigueBeforefatigueAfterfatigueBeforefatigueAfterfatigue
      PV value of fitting surface /μm5.943.535.723.725.333.28
      PV value of residual wavefront /μm1.582.721.822.972.053.20
      β1.101.921.162.111.382.41
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    Luo Shuai, Wang Jiaqiu, Zhang Bin. Influence of Fatigue Characteristics of Piezoelectric Ceramics Actuators on Correction Ability of Deformable Mirror[J]. Chinese Journal of Lasers, 2018, 45(9): 905002

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    Paper Information

    Category: Beam transmission and control

    Received: Jan. 29, 2018

    Accepted: --

    Published Online: Sep. 8, 2018

    The Author Email:

    DOI:10.3788/CJL201845.0905002

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology