Print Email Facebook Twitter Key challenges and results in the design of Cubesat Laser Terminals, Optical Heads and Coarse Pointing Assemblies Title Key challenges and results in the design of Cubesat Laser Terminals, Optical Heads and Coarse Pointing Assemblies Author Dresscher, M. Human, J.D. Witvoet, G. van der Heiden, N. den Breeje, R. Kuiper, S. Fritz, E.C. Korevaar, C.W. van der Valk, N.C.J. de Lange, T.J. Saathof, R. Doelman, N.J. Crowcombe, W.E. Duque, C.M. de Man, H. Publication year 2019 Abstract The anticipated capacity benefit of optical satellite communications has triggered a cascade of technology developments. In this paper, we present three such technologies, namely; i). A cube satellite laser terminal (CubeCAT), ii). A lower Earth orbit satellite optical head (LEOCAT) and iii). A calibration and verification test bench for coarse pointing assemblies, named pointing test bench (PTB). For these technologies, pointing stability and accuracy are central challenges. For i) and ii), we discuss anticipated effects of the thermal and mechanical disturbances that threaten the optical alignment of the system. We furthermore explain the mitigation of these effects through the system design so that a high optical performance can be maintained. For iii), we discuss the mechanical design challenges, in combination with modelling and calibration procedures for the system. Effective dealing with the three of them in turn enables highly accurate mirror orientation and rotation. Design specifications and current status are presented for each system. Subject Coarse-pointing assemblyCubesatFree space optical communicationsGround-support equipmentLaser communication terminalLaser satellite communicationsLow earth orbitOptical headSmallsatSatellite communication systemsSatellitesCalibration and verificationDesign specificationEarth-orbit satellitesMechanical disturbanceOptical performancePointing stability To reference this document use: http://resolver.tudelft.nl/uuid:5d480952-bf2b-49a3-a736-32bd84481f3a DOI https://doi.org/10.1109/icsos45490.2019.8978976 TNO identifier 876241 Publisher Institute of Electrical and Electronics Engineers IEEE, Piscataway, NJ, US ISBN 9781728105000 Source IEEE International Conference on Space Optical Systems and Applications, ICSOS 2019, 14-16 October 2019, Portland, OR, USA Article number 8978976 Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.