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9 July 2018 Learnings from the use of fiber optics in GRAVITY
Magdalena Lippa, Stefan Gillessen, Nicolas Blind, Yitping Kok, Karine Perraut, Laurent Jocou, Frank Eisenhauer, Oliver Pfuhl, Marcus Haug, Stefan Kellner, Frank Haußmann, Markus Plattner, Christian Rau, Oliver Hans, Ekkehard Wieprecht, Thomas Ott, Erich Wiezorrek, Eckhard Sturm, Alexander Buron, Sylvestre Lacour, Reinhard Genzel, Guy Perrin, Wolfgang Brandner, Christian Straubmeier, Antonio Amorim
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Proceedings Volume 10701, Optical and Infrared Interferometry and Imaging VI; 107011Y (2018) https://doi.org/10.1117/12.2312477
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States
Abstract
The use of optical fibers in astronomical instrumentation has been becoming more and more common. High transmission, polarization control, compact and easy routing are just a few of the advantages in this respect. But fibers also bring new challenges for the development of systems. During the assembly of the VLTI beam combiner GRAVITY different side effects of the fiber implementation had to be taken into account. In this work we summarize the corresponding phenomena ranging from the external factors influencing the fiber performance, like mechanical and temperature effects, to inelastic scattering within the fiber material.
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Magdalena Lippa, Stefan Gillessen, Nicolas Blind, Yitping Kok, Karine Perraut, Laurent Jocou, Frank Eisenhauer, Oliver Pfuhl, Marcus Haug, Stefan Kellner, Frank Haußmann, Markus Plattner, Christian Rau, Oliver Hans, Ekkehard Wieprecht, Thomas Ott, Erich Wiezorrek, Eckhard Sturm, Alexander Buron, Sylvestre Lacour, Reinhard Genzel, Guy Perrin, Wolfgang Brandner, Christian Straubmeier, and Antonio Amorim "Learnings from the use of fiber optics in GRAVITY", Proc. SPIE 10701, Optical and Infrared Interferometry and Imaging VI, 107011Y (9 July 2018); https://doi.org/10.1117/12.2312477
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KEYWORDS
Metrology
Connectors
Polarization
Backscatter
Fiber lasers
Raman scattering
Laser metrology
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