Fixation method with high orientation accuracy for optical terminals in space

Details Fixation method with high orientation accuracy for optical terminals in space Fixation method with high orientation accuracy for optical terminals in space

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991spie.1540..277b&link_type=abstract

In: Optomechanics and dimensional stability; Proceedings of the Meeting, San Diego, CA, July 25, 26, 1991 (A93-39433 15-74), p.

Physics

Earth Orbital Environments, Optical Communication, Satellite Communication, Terminals, Transmission Lines, Elastic Deformation, European Space Agency, Structural Vibration, Thermoelasticity

Scientific paper

The alignment-accuracy requirements for the LEO-terminal of the ESA project Semiconductor Intersatellite Link EXperiment are examined, showing that the accuracy will suffer due to two factors: thermoelastic deformation of the interface structure, producing a tilting of the optical terminal; and shrinking of the interface structure due to moisture release of the selected material CFRP, also resulting in tilting of the terminal. Theoretical solutions for these problems are obtained and technical solutions are proposed. It is shown that the use of local interface adapters at each connection will alleviate the problem of integrating the terminal with the tight tolerance fixation slots on the host satellite.

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