The DARWIN breadboard cryogenic optical delay line
van den Dool, T.C.
de Vries, C.
van Weers, H.
TNO Industrie en Techniek
Armandillo, E. (editor)
Costeraste, J. (editor)
Karafolas, N. (editor)
TNO, in cooperation with Micromega-Dynamics, SRON, Dutch Space and CSL, has designed a compact breadboard cryogenic delay line (figure 1) for use in future space interferometry missions. The work is performed under ESA contract 17.747/03 in preparation for the DARWIN mission. The breadboard (BB) delay line is representative of a flight mechanism. The delay line has a single stage voice coil actuator for Optical Path Difference (OPD) control, driving a two mirror cat’s eye. Magnetic bearings provide frictionless and wear free operation with zero-hysteresis. The design of the BB delay line has been completed. The development test program, including operation at 100 K has been completed. The verification test programme is currently being carried out and will include functional testing at 40 K.
Optical delay line
To reference this document use:
Active Magnetic Bearing
Optical delay lines
6th International Conference on Space Optics, ICSO 2006, Noordwijk, The Netherlands, 27-30 June 2006, 10567
Proceedings of SPIE - The International Society for Optical Engineering