Suppressing ghost beams: Backlink options for LISA

11th International LISA Symposium

Isleif, K.-S.^1 ; Gerberding, O.^2 ; Penkert, D.^2 ; Fitzsimons, E.^3 ; Ward, H.^4 ; Robertson, D.^4 ; Livas, J.^5 ; Mueller, G.^6 ; Reiche, J.^2 ; Heinzel, G.^2 ; Danzmann, K.^1,2

Leibniz Universitat Hannover, Institute for Gravitational Physics, Callinstr. 38, Hannover

30167, Germany^1

Max Planck Institute for Gravitational Physics, Albert Einstein Institute, Callinstr. 38, Hannover

30167, Germany^2

UK Astronomy Technology Centre, Royal Observatory, Blackford Hill, Edinburgh

EH9 3HJ, United Kingdom^3

University of Glasgow, R460 Level 4, IGR Physics and Astronomy, Kelvin Building, University Avenue, Glasgow

G12 8QQ, United Kingdom^4

NASA's Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt

MD

20771, United States^5

University of Florida, Department of Physics, Gainesville

FL

32611, United States^6

关键词: Back-links;    Compensation techniques;    Design option;    Faraday isolators;    Mitigation strategy;    Optical Bench;    Optical phase;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/840/1/012016/pdf
DOI  :  10.1088/1742-6596/840/1/012016

来源: IOP

【 摘 要 】

In this article we discuss possible design options for the optical phase reference system, the so called backlink, between two moving optical benches in a LISA satellite. The candidates are based on two approaches: Fiber backlinks, with additional features like mode cleaning cavities and Faraday isolators, and free beam backlinks with angle compensation techniques. We will indicate dedicated ghost beam mitigation strategies for the design options and we will point out critical aspects in case of an implementation in LISA.