Article (Scientific journals)
Characterizing 1550 nm optical components down to 8 K
Kuhlbusch, Tim J.; Zeoli, Morgane; Joppe, Robert et al.
2024In Cryogenics, 142, p. 103895
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Keywords :
1550 nm optics; Collimator; Cryogenics; Extended InGaAs; Gravitational wave detection; Interferometric sensing; Optics; Photodiodes; 1550 nm; 1550 nm optic; Extended ingaas; Gravitational waves detectors; Gravitational-wave detection; Noise source; Optical components; Square-root; Materials Science (all); Physics and Astronomy (all)
Abstract :
[en] Thermal noise sources are relevant for future gravitational wave detectors due to the foreseen increase in sensitivity, especially at frequencies below [Formula presented]. As most thermal noise sources scale with the square root of the temperature, cooling critical optical components and their suspension system is essential. This also requires a much wider range of temperature compatibility from all technology deployed in the last suspension stages, including displacement and inertial sensors. We demonstrate and characterize a setup for stable light sources and light intensity sensing for temperatures from 300 to [Formula presented]. Commercial collimators and fibers were tested to use light from stabilized laser sources in the cryogenic environment. We also investigated multiple semiconductor compositions of photodiodes and identified a solution with high and stable responsivity at [Formula presented].
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Kuhlbusch, Tim J. ;  III. Physikalisches Institut, RWTH Aachen University, Aachen, Germany
Zeoli, Morgane  ;  Université de Liège - ULiège > Aérospatiale et Mécanique (A&M) ; Centre for Cosmology, Particle Physics and Phenomenology (CP3), UCLouvain, Louvain-la-Neuve, Belgium ; Precision Mechatronics Laboratory, Liège, Belgium
Joppe, Robert;  III. Physikalisches Institut, RWTH Aachen University, Aachen, Germany
Collette, Christophe  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Active aerospace structures and advanced mechanical systems ; Precision Mechatronics Laboratory, Liège, Belgium
Hebbeker, Thomas;  III. Physikalisches Institut, RWTH Aachen University, Aachen, Germany
van Heijningen, Joris V.;  Centre for Cosmology, Particle Physics and Phenomenology (CP3), UCLouvain, Louvain-la-Neuve, Belgium ; Department of Physics and Astronomy, VU Amsterdam, Amsterdam, Netherlands ; Nikhef, Science Park 105, Amsterdam, Netherlands
Stahl, Achim;  III. Physikalisches Institut, RWTH Aachen University, Aachen, Germany
Language :
English
Title :
Characterizing 1550 nm optical components down to 8 K
Publication date :
September 2024
Journal title :
Cryogenics
ISSN :
0011-2275
Publisher :
Elsevier
Volume :
142
Pages :
103895
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Interreg Europe
ERDF - European Regional Development Fund
Funding text :
The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: All authors report financial support was provided by Interreg V-A Euregio Meuse-Rhine Programme. Morgane Zeoli reports financial support was provided by Fonds National de la Recherche Scientifique (FNRS). If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.This work comes within the scope of the E-TEST project, which is carried out within the framework of the Interreg V-A Euregio Meuse-Rhine Programme, with 7.5 million euros from the European Regional Development Fund (ERDF). By investing EU funds in Interreg projects, the European Union is investing directly in economic development, innovation, territorial development, social inclusion, and education in the Euregio Meuse-Rhine region. Aspects of this work have been previously documented in the internal E-TEST deliverables report. Morgane Zeoli is funded by the Fonds National de la Recherche Scientifique (FNRS) under projet de recherche STELLAR (T.0022.22).This work comes within the scope of the E-TEST project, which is carried out within the framework of the Interreg V-A Euregio Meuse-Rhine Programme, with 7.5 million euros from the European Regional Development Fund (ERDF). By investing EU funds in Interreg projects, the European Union is investing directly in economic development, innovation, territorial development, social inclusion, and education in the Euregio Meuse-Rhine region. Aspects of this work have been previously documented in the internal E-TEST deliverables report. Morgane Zeoli is funded by the Fonds National de la Recherche Scientifique (FNRS) under projet de recherche STELLAR (T.0022.22).
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