Title
Interferometric characterization and modeling of pathlength errors resulting from beamwalk across mirror surfaces in LISA
Author
Kögel, H.
Gerardi, D.
Pijnenburg, J.A.C.M.
Gohlke, M.
Schuldt, T.
Johann, U.
Braxmaier, C.
Weise, D.
Publication year
2013
Abstract
An alternative payload concept with in-field pointing for the laser interferometer space antenna utilizes an actuated mirror in the telescope for beam tracking to the distant satellite. This actuation generates optical pathlength variations due to the resulting beamwalk over the surface of subsequent optical components, which could possibly have a detrimental influence on the accuracy of the measurement instrument. We have experimentally characterized such pathlength errors caused by a λ/10 mirror surface and used the results to validate a theoretical model. This model is then applied to predict the impact of this effect for the current optical design of the LISA off-axis wide-field telescope. © 2013 Optical Society of America.
Subject
Mechatronics, Mechanics & Materials
OM - Opto-Mechatronics
TS - Technical Sciences
High Tech Systems & Materials
Electronics
Industrial Innovation
To reference this document use:
http://resolver.tudelft.nl/uuid:e17e9c03-7470-43f5-9709-b977a1e1097b
TNO identifier
473207
ISSN
0003-6935
Source
Applied Optics, 52 (15), 3516-3525
Document type
article