Terrestrial Planet Finder cryogenic delay line development

Robert F. Smythe; Mark R. Swain; Oscar S. Alvarez-Salazar; James D. Moore

doi:10.1117/12.552260

20 October 2004 Terrestrial Planet Finder cryogenic delay line development

Robert F. Smythe, Mark R. Swain, Oscar S. Alvarez-Salazar, James D. Moore

Proceedings Volume 5491, New Frontiers in Stellar Interferometry; (2004) https://doi.org/10.1117/12.552260
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

Delay lines provide the pathlength compensation that makes the measurement of interference fringes possible. When used for nulling interferometry, the delay line must control pathlengths so that the null is stable and controlled throughout the measurement. We report on a low noise, low disturbance, high bandwidth optical delay line capable of meeting the TPF interferometer optical path length control requirements at cryogenic temperatures.

Citation Download Citation

Robert F. Smythe, Mark R. Swain, Oscar S. Alvarez-Salazar, and James D. Moore "Terrestrial Planet Finder cryogenic delay line development", Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); https://doi.org/10.1117/12.552260

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