Single-mode waveguides in thermal infrared wavelengths for spatial interferometry
| Autor: | Annie Pradel, Emmanuel Laurent, Isabelle Shanen, Pierre Kern, Assia Aggad |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Waveguide (electromagnetism) business.industry Chalcogenide Astrophysics::Instrumentation and Methods for Astrophysics Single-mode optical fiber Physics::Optics Exoplanet Characterization (materials science) Wavelength Interferometry chemistry.chemical_compound Optics chemistry Darwin (spacecraft) Astrophysics::Earth and Planetary Astrophysics business |
| Zdroj: | International Conference on Space Optics — ICSO 2000. |
| DOI: | 10.1117/12.2307926 |
| Popis: | Integrated optics, applied to astronomical interferometry, bring several decisive benefits compared to bulk optics : mechanical and thermal stability, small size, facility to realize combiners for many telescopes. At this time, numerous compoments were dezigned, realized and tested for stellar interferometry applications. Laboratory characterization in the VIS/NIR wavelengths confirm the expected capabilities and performances. At thermal infrared wavelengths, the concept of integrated optics is of great interest for spatial instrumentations and particulary for the Darwin/IRSI mission. The aim of the mission, launched in 2012−2015, is the detection and the spectroscopic study of extrasolar planets. Our long term goal is the development of monomode integrated optic components for thermal infrared wavelengths. In the near futur, we are interested by the conception and the realization of single mode straight waveguide for using in modal filtering. In this paper, we present the conception of first thermal waveguide and their characterizations. Around different solutions, we focused our attention on the utilization of chalcogenide glasses because of its wide transmission window, from 1 to 20 microns depending of the material composition, and of the potentially low propagation losses. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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