Acta Optica Sinica, Volume. 37, Issue 9, 0906003(2017)
Design of Compact Tip-Tilt Mirror Assembly in Multi-Node Laser Communication Antennas
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Fig. 2. (a) Structural diagram of tip-tilt mirror assembly; (b) structural diagram of tip-tilt mirror supporting plate
Fig. 4. (a) Finite element model of tip-tilt mirror assembly; (b) result of modal analysis
Fig. 6. Results of force-heat coupling analysis at different temperatures. (a) 15 ℃; (b) 25 ℃
Fig. 7. System for tip-tilt mirror assembly surface shape testing. (a)(b) Tip-tilt mirror assembly;(c)(d) experimental setup of surface shape testing
Fig. 8. Results of tip-tilt mirror surface shape testing at different temperatures. (a) 15 ℃; (b) 20 ℃; (c) 25 ℃
Table 1. Properties of universal optical materials and mechanical materials
View tableTable 1. Properties of universal optical materials and mechanical materials
Material Density ρ /(g·cm-3)Elastic modulus E /GPaLinear expansion coefficient α /(10-6 ℃-1)H-K9L glass 2.52 79.2 7.60 Zerodur 2.53 90.6 0.05 SiC 2.92 310.0 2.64 High volume fraction SiC /Al 3.03 235.0 7.80 Al 2.68 68.2 23.60 Titanium alloy (TC4) 4.44 109.0 8.90 Steel (45) 7.81 200.0 11.59 Invar (4J32) 8.10 141.0 0.30
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Xiang Li, Lizhong Zhang, Xiaoming Li, Ming Liu, Lixin Meng. Design of Compact Tip-Tilt Mirror Assembly in Multi-Node Laser Communication Antennas[J]. Acta Optica Sinica, 2017, 37(9): 0906003
Paper Information
Category: Fiber Optics and Optical Communications
Received: Mar. 16, 2017
Accepted: --
Published Online: Sep. 7, 2018
The Author Email: Li Xiang (abelfeel@163.com)
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