S pace Qualification Of A Thin Wafer Lithium Niobate Etalon For The Visible Light Imager And Magnetograph (Vim)

Bibcode
2006ESASP.641E..82S
Schühle, U.; Mathew, S. K.; Wedemeier, M.; Hartwig, H.; Ballesteros, E.; Martinez Pillet, V.; Solanki, S. K.
Bibliographical reference

Proceedings of The Second Solar Orbiter Workshop, by Marsch, E.; Tsinganos, K.; Marsden, R.; Conroy, L. ESA-SP 641. ISBN: 92-9291-205-2. Noordwijk, Netherlands: European Space Agency, 2006, id.82

Advertised on:
10
2006
Number of authors
7
IAC number of authors
0
Citations
0
Refereed citations
0
Description
For the Visible Light Imager and Magnetograph (VIM) a high-resolution filtergraph is under design. The system takes advantage of a lithium niobate (LiNbO3) crystal which can be used as a scanning filter using high voltage for tuning. We have undertaken first studies to qualify a lithium niobate wafer of 70 mm aperture size for deployment and use in space. We show the results of the mechanical mounting and vibration and thermal cycling tests as well as stability tests under fast voltage tuning in vacuum. Although these tests have all been very successful, further environmental testing is necessary to fully space-qualify the filter for the Solar Orbiter mission.
Type
Non-refereed

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