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Mechanical design of off-axis antenna for laser transmitter integration device 认领 引用
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作者 Boxiang HOU Qimeng CHEN +3 位作者 Liang GAO Lei YANG Qiang SUN Keyan DONG 《Optoelectronics Letters》 EI 2026年第6期327-331,共5页
To ensure the stability of the laser communication system under complex dynamic loads,an off-axis dual-mirror optical antenna system was developed.Thermal-mechanical coupling analysis and wavefront aberration evaluati... To ensure the stability of the laser communication system under complex dynamic loads,an off-axis dual-mirror optical antenna system was developed.Thermal-mechanical coupling analysis and wavefront aberration evaluation were conducted to predict the aberration under dynamic conditions and verify structural reliability.Based on D'Alembert's principle,an acceleration-temperature gradient coupling model was constructed,and a mapping between rigid body displacement and wavefront error was established.Simulation results indicate that the maximum deformation under composite loading is 0.065873 mm,and the root-mean-square(RMS)wavefront error increases from 0.047λto 0.068λ,remaining within the RMS<0.1λdesign threshold.The initial wavefront RMS measured by the ZYGO interferometer is 0.052λ,deviating from the simulated value of 0.047λby only 0.005λ.This validates the model's accuracy and offers theoretical and engineering support for high-precision optical design in space-based laser communication systems. 展开更多
关键词 wavefront aberration evaluation verify structural reliabilitybased rigid body displacement laser communication system off axis antenna laser transmitter predict aberration dynamic conditions dalemberts principlean
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