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Communication Dans Un Congrès Année : 2003

10 um wavefront spatial filtering: first results with chalcogenide fibers

Résumé

Wavefront cleaning by single-mode fibers has proved to be efficient in optical-infrared interferometry to improve calibration quality. For instance, the FLUOR instrument has demonstrated the capability of fluoride glass single-mode fibers in this respect in the K and L bands. New interferometric instruments developped for the mid-infrared require the same capability for the 8-12 um range. We have initiated a program to develop single-mode fibers in the prospect of the VLTI mid-infrared instrument MIDI and of the ESA/DARWIN and NASA/TPF missions that require excellent wavefront quality. In order to characterize the performances of chalcogenide fibers we are developping, we have set up an experiment to measure the far-field pattern radiated at 10 um. In this paper, we report the first and promising results obtained with this new component.

Dates et versions

hal-00011157 , version 1 (11-10-2005)

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Pascal Bordé, Guy Perrin, Thanh Binh Nguyen, Anne Amy-Klein, Christophe Daussy, et al.. 10 um wavefront spatial filtering: first results with chalcogenide fibers. 2003, pp.273-279. ⟨hal-00011157⟩
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