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Proceedings Paper

The development of a breadboard cryogenic optical delay line for Darwin
Author(s): T. C. van den Dool; F. Kamphues; W. L. M. Gielesen; B. C. Braam; N. Loix; P. P. Kooijman; G. Velsink; Y. Stockman; J. Benoit; F. Sève
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Paper Abstract

TNO has developed a compact BreadBoard (BB) cryogenic Optical Delay Line (ODL) for use in future space interferometry missions such as ESA's Darwin and NASA's TPF-I. The breadboard delay line is representative of a flight mechanism. The optical design is a two-mirror cat's-eye. A linear guiding system based on magnetic bearings provides frictionless and wear free operation with zero hysteresis. The delay line has a voice coil actuator for single stage Optical Path Difference (OPD) control. The verification program, including functional testing at 40 K, has been completed succesfully.

Paper Details

Date Published: 17 September 2007
PDF: 12 pages
Proc. SPIE 6692, Cryogenic Optical Systems and Instruments XII, 66920A (17 September 2007); doi: 10.1117/12.730435
Show Author Affiliations
T. C. van den Dool, TNO Science and Industry (Netherlands)
F. Kamphues, TNO Science and Industry (Netherlands)
W. L. M. Gielesen, TNO Science and Industry (Netherlands)
B. C. Braam, TNO Science and Industry (Netherlands)
N. Loix, Micromega-Dynamics (Belgium)
P. P. Kooijman, SRON (Netherlands)
G. Velsink, Dutch Space (Netherlands)
Y. Stockman, CSL (Belgium)
J. Benoit, Thales Alenia Space (France)
F. Sève, SAGEIS-CSO (France)


Published in SPIE Proceedings Vol. 6692:
Cryogenic Optical Systems and Instruments XII
James B. Heaney; Lawrence G. Burriesci, Editor(s)

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