Towards the LISA backlink: Experiment design for comparing optical phase reference distribution systems

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dc.identifier.uri Isleif, Katharina-Sophie Bischof, Lea Ast, Stefan Penkert, Daniel Schwarze, Thomas S. Barranco, German Fernandez Zwetz, Max Veith, Sonja Hennig, Jan-Simon Tröbs, Michael Reiche, Jens Gerberding, Oliver Danzmann, Karsten Heinzel, Gerhard 2018-05-23T11:41:22Z 2018-05-23T11:41:22Z 2018
dc.identifier.citation Isleif, K.-S.; Bischof, L.; Ast, S.; Penkert, D.; Schwarze, T.S. et al.: Towards the LISA backlink: Experiment design for comparing optical phase reference distribution systems. In: Classical and Quantum Gravity 35 (2018), Nr. 8, 85009. DOI:
dc.description.abstract LISA is a proposed space-based laser interferometer detecting gravitational waves by measuring distances between free-floating test masses housed in three satellites in a triangular constellation with laser links in-between. Each satellite contains two optical benches that are articulated by moving optical subassemblies for compensating the breathing angle in the constellation. The phase reference distribution system, also known as backlink, forms an optical bi-directional path between the intra-satellite benches. In this work we discuss phase reference implementations with a target non-reciprocity of at most 2π μrad Hz-1, equivalent to 1 pm √Hz-1 for a wavelength of 1064 nm in the frequency band from 0.1 mHz to 1 Hz. One phase reference uses a steered free beam connection, the other one a fiber together with additional laser frequencies. The noise characteristics of these implementations will be compared in a single interferometric set-up with a previously successfully tested direct fiber connection. We show the design of this interferometer created by optical simulations including ghost beam analysis, component alignment and noise estimation. First experimental results of a free beam laser link between two optical set-ups that are co-rotating by ±1° are presented. This experiment demonstrates sufficient thermal stability during rotation of less than 10-4 K √Hz-1 at 1 mHz and operation of the free beam steering mirror control over more than 1 week. © 2018 IOP Publishing Ltd Printed in the UK. eng
dc.language.iso eng
dc.publisher Bristol : Institute of Physics Publishing
dc.relation.ispartofseries Classical and Quantum Gravity 35 (2018), Nr. 8
dc.rights CC BY 3.0 Unported
dc.subject gravitational wave detection eng
dc.subject laser interferometer space antenna eng
dc.subject laser interferometry eng
dc.subject precision metrology eng
dc.subject stray light eng
dc.subject Gravitationswelle ger
dc.subject.ddc 530 | Physik ger
dc.title Towards the LISA backlink: Experiment design for comparing optical phase reference distribution systems eng
dc.type article
dc.type Text
dc.relation.issn 0264-9381
dc.bibliographicCitation.issue 8
dc.bibliographicCitation.volume 35
dc.bibliographicCitation.firstPage 85009
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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