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

Download statistics - Document (COUNTER):

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:

Repository version

To cite the version in the repository, please use this identifier:

Selected time period:


Sum total of downloads: 271

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.
License of this version: CC BY 3.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2018
Appears in Collections:Fakultät für Mathematik und Physik

distribution of downloads over the selected time period:

downloads by country:

pos. country downloads
total perc.
1 image of flag of Germany Germany 171 63.10%
2 image of flag of United States United States 33 12.18%
3 image of flag of France France 10 3.69%
4 image of flag of China China 10 3.69%
5 image of flag of Russian Federation Russian Federation 8 2.95%
6 image of flag of Bulgaria Bulgaria 7 2.58%
7 image of flag of Belgium Belgium 6 2.21%
8 image of flag of United Kingdom United Kingdom 4 1.48%
9 image of flag of Netherlands Netherlands 3 1.11%
10 image of flag of Italy Italy 3 1.11%
    other countries 16 5.90%

Further download figures and rankings:


Zur Erhebung der Downloadstatistiken kommen entsprechend dem „COUNTER Code of Practice for e-Resources“ international anerkannte Regeln und Normen zur Anwendung. COUNTER ist eine internationale Non-Profit-Organisation, in der Bibliotheksverbände, Datenbankanbieter und Verlage gemeinsam an Standards zur Erhebung, Speicherung und Verarbeitung von Nutzungsdaten elektronischer Ressourcen arbeiten, welche so Objektivität und Vergleichbarkeit gewährleisten sollen. Es werden hierbei ausschließlich Zugriffe auf die entsprechenden Volltexte ausgewertet, keine Aufrufe der Website an sich.

Search the repository