| YANG Feng-fu,TIAN Hai-ying,YAN Chang-xiang,WU Cong-jun,MU De-qiang.Athermal design of the mirror support with flexure hinges for the laser communication terminal[J].Optoelectronics Letters,2019,15(6):454-458 |
| Athermal design of the mirror support with flexure hinges for the laser communication terminal |
| Author Name | Affiliation | | YANG Feng-fu | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033,China
University of Chinese Academy of Sciences, Beijing 100049, China | | TIAN Hai-ying | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033,China | | YAN Chang-xiang | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033,China
Center of Materials Science and Optoelectrics Engineering, University of Chinese Academy of Science, Beijing 100049, China | | WU Cong-jun | Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033,China | | MU De-qiang | Changchun University of Technology, Changchun 130012, China |
|
| Abstract: |
| In order to suppress the effect of the temperature variation on the wavefront of the laser communication terminal, the secondary mirror support with flexure hinges is designed. The series-wound straight-circle flexure hinge is designed to achieve the maximal variation range of the flexibility or stiffness with the limit of flexure hinges’ geometrical size. The position and quantity of the flexure hinges are determined to control the deformation direction of the secondary mirror. In order to search the direction in which the wavefront aberration is minimum, the flexure hinges’ parameters are optimized with the system wavefront aberration as the optimization objective. The prototype of the laser communication terminal is constructed and the value of the wavefront aberration is measured under the condition of 20±2°C. Experimental results show that the value of the wavefront aberration root mean square (RMS) is reduced from 0.066λ to 0.042λ, meeting the requirement of RMS less than 1/20λ (λ=632.8 nm). The athermal design method presented in this paper provides a novel way for the athermal design of the small aperture mirror support in off-axis optical systems. |
| Hits: 718 |
| Download times: 0 |
|
| View Full Text Download reader |
|
|
|
