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Proceedings Paper

Advanced optical delay line demonstrator
Author(s): Teun van den Dool; Fred Kamphues; B. Fouss; K. Henrioulle; Harm Hogenhuis
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Paper Abstract

TNO TPD, in cooperation with Micromega-Dynamics and Dutch Space, has designed an advanced Optical Delay Line (ODL) for use in future ground based and space interferometry missions. The work is performed under NIVR contract in preparation for GENIE and DARWIN. Using the ESO PRIMA DDL requirements as a baseline, the delay line can be used for PRIMA and GENIE without any modifications. The delay line design is modular and flexible, which makes scaling for other applications a relatively easy task. The ODL has a single linear motor actuator for Optical Path Difference (OPD) control, driving a two-mirror cat’s eye with SiC mirrors and CFRP structure. Magnetic bearings provide frictionless and wear free operation with zerohysteresis. The delay line is currently being assembled and will be subjected to a comprehensive test program in the second half of 2004.

Paper Details

Date Published: 29 September 2004
PDF: 12 pages
Proc. SPIE 5495, Astronomical Structures and Mechanisms Technology, (29 September 2004); doi: 10.1117/12.549423
Show Author Affiliations
Teun van den Dool, TNO TPD (Netherlands)
Fred Kamphues, TNO TPD (Netherlands)
B. Fouss, Micromega-Dynamics (Belgium)
K. Henrioulle, Micromega-Dynamics (Belgium)
Harm Hogenhuis, Dutch Space (Netherlands)

Published in SPIE Proceedings Vol. 5495:
Astronomical Structures and Mechanisms Technology
Joseph Antebi; Dietrich Lemke, Editor(s)

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