论文标题

激光器射程仪器的轴上光学台,以后重力任务

On-axis Optical Bench for Laser Ranging Instruments in future gravity missions

论文作者

Yang, Yichao, Yamamoto, Kohei, Álvarez, Miguel Dovale, Wei, Daikang, Delgado, Juan Jose Esteban, Müller, Vitali, Jia, Jianjun, Heinzel, Gerhard

论文摘要

The Laser Ranging Interferometer onboard the Gravity Recovery and Climate Experiment Follow-On mission proved the feasibility of an interferometric sensor for inter-satellite length tracking with sub-nanometer precision, establishing an important milestone for space laser interferometry and the general expectation that future gravity missions will employ heterodyne laser interferometry for satellite-to-satellite ranging.在本文中,我们介绍了用于下一代激光射程的轴上光学台式的设计,从而增强了接收到的光学功率和发射光束发散,从而实现了更长的干涉仪臂,并放松了激光组件的光功率需求。所有设计功能和要求均通过计算机模拟验证。进行热分析以研究所提出的光学基准对轨道中温度波动的鲁棒性。

The Laser Ranging Interferometer onboard the Gravity Recovery and Climate Experiment Follow-On mission proved the feasibility of an interferometric sensor for inter-satellite length tracking with sub-nanometer precision, establishing an important milestone for space laser interferometry and the general expectation that future gravity missions will employ heterodyne laser interferometry for satellite-to-satellite ranging. In this paper we present the design of an on-axis optical bench for next-generation laser ranging which enhances the received optical power and the transmit beam divergence, enabling longer interferometer arms and relaxing the optical power requirement of the laser assembly. All design functionalities and requirements are verified by means of computer simulations. A thermal analysis is carried out to investigate the robustness of the proposed optical bench to the temperature fluctuations found in orbit.

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