The development of a breadboard cryogenic optical delay line for Darwin

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

doi:10.1117/12.730435

17 September 2007 The development of a breadboard cryogenic optical delay line for Darwin

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

Author Affiliations +

Proceedings Volume 6692, Cryogenic Optical Systems and Instruments XII; 66920A (2007) https://doi.org/10.1117/12.730435
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

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.

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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, and F. Sève "The development of a breadboard cryogenic optical delay line for Darwin", Proc. SPIE 6692, Cryogenic Optical Systems and Instruments XII, 66920A (17 September 2007); https://doi.org/10.1117/12.730435

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