PRAXIS: a low background NIR spectrograph for fibre Bragg grating OH suppression

@inproceedings{Horton2012PRAXISAL,
  title={PRAXIS: a low background NIR spectrograph for fibre Bragg grating OH suppression},
  author={Anthony J. Horton and Simon C. Ellis and Jonathan S. Lawrence and Joss Bland-Hawthorn},
  booktitle={Other Conferences},
  year={2012}
}
Fibre Bragg grating (FBG) OH suppression is capable of greatly reducing the bright sky background seen by near infrared spectrographs. By filtering out the airglow emission lines at high resolution before the light enters the spectrograph this technique prevents scattering from the emission lines into interline regions, thereby reducing the background at all wavelengths. In order to take full advantage of this sky background reduction the spectrograph must have very low instrumental backgrounds… 
PRAXIS: a near infrared spectrograph optimised for OH suppression
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TLDR
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GNOSIS: a novel near-infrared OH suppression unit at the AAT
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