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| Identifier |
000400138 |
| Title |
Vibrational and angular stability of optical systems for space applications |
| Alternative Title |
Δονητική και γωνιακή ευστάθεια οπτικών συστημάτων για διαστημικές εφαρμογές |
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Author
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Δρουγκάκης, Ιωάννης
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Thesis advisor
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Παπάζογλου, Δημήτριος
Wolf Von Klitzing
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| Abstract |
Stability of optical systems is a critical issue for optical space applications since long and short term fluctuations in temperature and flight induced vibrations can dramatically affect their performance. The technical requirements in respect to the angular positioning, optical path length, positional and beam alignment are at the limits of current mounting and optical component fabrication technology. A number of ongoing and proposed space missions, such as STE-QUEST, use fiber-free space-fiber schemes in order to manipulate laser beams.
In this thesis we have focused on the analysis and the optimization of the performance of a typical a fiber-free space-fiber optical communication link. The receiver and transmitter subsystems were composed by a fiber connected to a fiber coupler. Using a rigorous approach on a simplified optical system we have deduced analytical formulas for the power coupling as a function of all system parameters and possible misalignments of the optical components. This allowed us to optimize the transmitter/receiver optics so that the optical system is less sensitive to misalignments. The optimized system, composed by commercial optical components, was numerically tested using a commercial ray tracing analysis software. The sensitivity to misalignments was thus numerically estimated. The results were in excellent agreement with our analytical formulation.
This thesis is a part of the “Optical Breadboard Technologies for Complex Space Missions” project financed by the European Space Agency (ESA) and took place in IESL-FORTH facilities.
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| Language |
English |
| Subject |
Fiber optics |
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Οπτικές ίνες |
| Issue date |
2016 -03-24 |
| Collection
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School/Department--School of Medicine--Department of Medicine--Post-graduate theses
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Type of Work--Post-graduate theses
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| Views |
225 |
Vibrational and angular stability of optical systems for space applications
