Mid-infrared guided optics: a perspective for astronomical instruments

Abstract

Research activities during the last decade have shown the strong potential of photonic devices to greatly simplify ground based and space borne astronomical instruments and to improve their performance. We focus specifically on the mid-infrared wavelength regime (about 5-20 microns), a spectral range offering access to warm objects (about 300 K) and to spectral features that can be interpreted as signatures for biological activity (e.g. water, ozone, carbon dioxide). We review the relevant research activities aiming at the development of single-mode guided optics and the corresponding manufacturing technologies. We evaluate the experimentally achieved performance and compare it with the performance requirements for applications in various fields of astronomy. Our goal is to show a perspective for future astronomical instruments based on mid-infrared photonic devices.

16 pages, published in OSA Optics Express (see http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-17-3-1947)

References in corpus (8)

• Wavelength-scale stationary-wave integrated Fourier-transform spectrometry
• Integrated optics for astronomical interferometry. I. Concept and astronomical applications
• GRAVITY: getting to the event horizon of Sgr A*
• Transmission measurement at 10.6 microns of Te2As3Se5 rib-waveguides on As2S3 substrate
• Instruments without optics: an integrated photonic spectrograph
• M-lines characterization of selenide and telluride waveguides for mid-infrared interferometry
• 10 um wavefront spatial filtering: first results with chalcogenide fibers
• Transmission behaviors of single mode hollow metallic waveguides dedicated to mid-infrared nulling interferometry

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• 2023 Astrophotonics Roadmap: pathways to realizing multi-functional integrated astrophotonic instruments
• Ultrafast laser inscription of mid-IR directional couplers for stellar interferometry
• Astrophotonics: astronomy and modern optics
• Astronomical photonics in the context of infrared interferometry and high-resolution spectroscopy
• Integrated optics interferometric four telescopes nuller