TAKATO , N.

Photonic technologies offer numerous advantages for astronomical instruments such as spectrographs and interferometers owing totheir small footprints and diverse range of functionalities. Operating at the diffraction-limit, it is notoriously difficult to efficientlycouple such devices directly with large telescopes. We demonstrate that with...

We demonstrate for the first time an efficient, photonic-based astronomical spectrograph on the 8-m Subaru Telescope. An extreme adaptive optics system is combined with pupil apodiziation optics to efficiently inject light directly into a single-mode fiber, which feeds a compact cross-dispersed spectrograph based on array waveguide grating...

International audience

International audience

International audience