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12 July 2023 Off-axis optical bench design for next generation gravity mission
Kailan Wu, Bo Peng, Xuling Lin, Honggang Luo, Yun Wang, Jingui Wu, Xuhui Shen, Xiaotao Chang, Yun-Kau Lau, Yongchao Zheng, Jianjun Jia, Yichao Yang
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Proceedings Volume 12777, International Conference on Space Optics — ICSO 2022; 127773N (2023) https://doi.org/10.1117/12.2690540
Event: International Conference on Space Optics — ICSO 2022, 2022, Dubrovnik, Croatia
Abstract
An off-axis optical design is proposed as a possible optical bench setup for the next generation gravity and geodesy mission. In place of the triple mirror assembly of the GRACE Follow on mission, a more compact, light weight new layout of an off-axis optical design which adopts an assembly of mirrors and lens systems is studied. The lens systems serve on one hand to achieve laser retro-reflection between two satellites and on the other hand, to optimize the receiving, local, and transmitting beam parameters. The receiving (RX) and transmitting (TX) beam are enforced to be anti-parallel by means of a control loop with the differential wavefront sensing (DWS) signals as controller. A simulation model is then built using IfoCAD to verify the feasibility of the optical design. Preliminary simulation results indicate that, with the proposed optical layout, the tilt to length coupling noises originated both locally and that from attitude jitter of spacecrafts are efficiently suppressed. Thermal stability of the optical bench is also briefly considered.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Kailan Wu, Bo Peng, Xuling Lin, Honggang Luo, Yun Wang, Jingui Wu, Xuhui Shen, Xiaotao Chang, Yun-Kau Lau, Yongchao Zheng, Jianjun Jia, and Yichao Yang "Off-axis optical bench design for next generation gravity mission", Proc. SPIE 12777, International Conference on Space Optics — ICSO 2022, 127773N (12 July 2023); https://doi.org/10.1117/12.2690540
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KEYWORDS
Optical benches
Design and modelling
Optical design
Data transmission
Satellites
Photodiodes
Astronomical imaging
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