Efficiently feeding single-mode fiber photonic spectrographs with an extreme adaptive optics system: on-sky characterization and preliminary spectroscopy
AffiliationUniv Arizona, Steward Observ
Univ Arizona, Ctr Opt Sci
Arrayed Waveguide Gratings
Diffraction limited performance
MetadataShow full item record
PublisherSPIE-INT SOC OPTICAL ENGINEERING
CitationN. Jovanovic ; N. Cvetojevic ; C. Schwab ; B. Norris ; J. Lozi ; S. Gross ; C. Betters ; G. Singh ; O. Guyon ; F. Martinache ; D. Doughty and P. Tuthill " Efficiently feeding single-mode fiber photonic spectrographs with an extreme adaptive optics system: on-sky characterization and preliminary spectroscopy ", Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99080R (August 3, 2016); doi:10.1117/12.2234299; http://dx.doi.org/10.1117/12.2234299
Rights© 2016 SPIE
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AbstractHigh-order wavefront correction is not only beneficial for high-contrast imaging, but also spectroscopy. The size of a spectrograph can be decoupled from the size of the telescope aperture by moving to the diffraction limit which has strong implications for ELT based instrument design. Here we present the construction and characterization of an extremely efficient single-mode fiber feed behind an extreme adaptive optics system (SCExAO). We show that this feed can indeed be utilized to great success by photonic-based spectrographs. We present metrics to quantify the system performance and some preliminary spectra delivered by the compact spectrograph.
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