Design of CPA reflective mirror in space laser communication via multi-objective optimization

Yang Song; Yongming Hu; Wenyi Chai; Jing Ye; Wei Xin; Bin Hu; Chenjie Wang

doi:10.1117/12.2542590

20 December 2019 Design of CPA reflective mirror in space laser communication via multi-objective optimization

Yang Song, Yongming Hu, Wenyi Chai, Jing Ye, Wei Xin, Bin Hu, Chenjie Wang

Proceedings Volume 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019); 112090D (2019) https://doi.org/10.1117/12.2542590
Event: Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 2019, Xi'an, China

Abstract

The research on space laser communication has become a hotspot in recent years. The research trend of it is high speed transferring, networking and integration. Integration design means that the structure should be compact and reliable. CPA (Coarse Pointing Assembly) is an important component in space laser communication system. The paper makes design of CPA reflective mirror. On one hand, it is expected that the reflective mirror is as light as possible with small size. On the other hand, it is expected that the structure is reliable with high stiffness. These two aspects are contradict. And several factors make influence on these two aspects, such as the thickness of mirror, the size of bottom holes, the thickness of ribs and so on. The paper makes sensitivity analysis and chooses proper design variables for further optimization. And then, the paper makes a multi-objective optimal design based on factors mentioned above. In the process of optimization, a special objective function is deduced. At last the optimal design is obtained. The result shows that optimal design scheme has good characteristics.

Citation Download Citation

Yang Song, Yongming Hu, Wenyi Chai, Jing Ye, Wei Xin, Bin Hu, and Chenjie Wang "Design of CPA reflective mirror in space laser communication via multi-objective optimization", Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112090D (20 December 2019); https://doi.org/10.1117/12.2542590

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