M-lines characterization of selenide and telluride waveguides for mid-infrared interferometry

Nulling interferometry is an astronomical technique that combines equal wavefronts to achieve a deep rejection ratio of an on-axis star, and that could permit to detect Earth-like planets in the mid-infrared band 5 -- 20 microns. Similarly to what is done in the near-infrared, high frequencies spatial filtering of the incoming beams can be achieved using single-mode waveguides operating in the mid-infrared. An appreciable reduction of the instrumental complexity is also possible using integrated optics (IO) devices in this spectral range. The relative lack of single-mode guided optics in the mid-infrared has motivated the present technological study to demonstrate the feasibility of dielectric waveguides functioning at longer wavelengths. We propose to use selenide and telluride components to pursue the development of more complex IO functions.Comment: accepted in OSA Optics Express, 11 pages, 4 figure

Te-rich Ge-As-Se-Te bulk glasses and films for future infrared integrated optics

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Effect of annealing on the photoluminescence in sputtered films of Er-doped chalcogenide glasses

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Selenide and Telluride Thick Films for Mid and Thermal Infrared Applications

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Characterisation of thin films obtained by laser ablation of Ge28Se60Sb12 glasses

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Waveguides based on Te2As3Se5 thick films for spatial interferometry

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Results on the development of mid-infrared integrated optics for the Darwin Mission

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Recent Progress in Mid Infrared Integrated Optics for Nulling Interferometry

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