Photonic technologies have received growing consideration for incorporation into next-generation astronomical instrumentation, owing to their miniature footprint and inherent robustness. In this paper we present results from the first on-telescope demonstration of a miniature photonic spectrograph for astronomy, by obtaining spectra spanning the entire H-band from several stellar targets. The prototype was tested on the 3.9 m Anglo-Australian telescope. In particular, we present a spectrum of the variable star Pi 01 Gru, with observed CO molecular absorption bands, at a resolving power R = 2500 at 1600 nm. Furthermore, we successfully demonstrate the simultaneous acquisition of multiple spectra with a single spectrograph chip by using multiple fibre inputs.
@article{arxiv.1208.4418,
title = {First starlight spectrum captured using an integrated photonic micro-spectrograph},
author = {N. Cvetojevic and N. Jovanovic and C. Betters and J. S. Lawrence and S. C. Ellis and G. Robertson and J. Bland-Hawthorn},
journal= {arXiv preprint arXiv:1208.4418},
year = {2012}
}