Efficiently feeding single-mode fiber photonic spectrographs with an extreme adaptive optics system

on-sky characterization and preliminary spectroscopy

N. Jovanovic, N. Cvetojevic, C. Schwab, B. Norris, J. Lozi, S. Gross, C. Betters, G. Singh, O. Guyon, F. Martinache, D. Doughty, P. Tuthill

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

15 Citations (Scopus)

Abstract

High-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.

Original languageEnglish
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy VI
EditorsL. Simard, C. J. Evans, H. Takami
Place of PublicationWashington
PublisherSPIE
Pages1-10
Number of pages10
ISBN (Electronic)9781510601956
DOIs
Publication statusPublished - 2016
EventGround-Based and Airborne Instrumentation for Astronomy VI - Edinburgh, United Kingdom
Duration: 26 Jun 201630 Jun 2016

Publication series

NameProceedings of SPIE
PublisherSPIE
Volume9908
ISSN (Print)0277-786X

Other

OtherGround-Based and Airborne Instrumentation for Astronomy VI
CountryUnited Kingdom
CityEdinburgh
Period26/06/1630/06/16

Keywords

  • Arrayed Waveguide Gratings
  • Diffraction-limited performance
  • Extreme AO
  • Fiber injection
  • Photonic instruments
  • Pupil apodization
  • Spectroscopy

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