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arXiv · 1208.3006

The Photonic TIGER: a multicore fiber-fed spectrograph

Sergio G. Leon-Saval·Christopher H. Betters·Joss Bland-Hawthorn
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Abstract

We present a proof of concept compact diffraction limited high-resolution fiber-fed spectrograph by using a 2D multicore array input. This high resolution spectrograph is fed by a 2D pseudo-slit, the Photonic TIGER, a hexagonal array of near-diffraction limited single-mode cores. We study the feasibility of this new platform related to the core array separation and rotation with respect to the dispersion axis. A 7 core compact Photonic TIGER fiber-fed spectrograph with a resolving power of around R~31000 and 8 nm bandwidth in the IR centered on 1550 nm is demonstrated. We also describe possible architectures based on this concept for building small scale compact diffraction limited Integral Field Spectrographs (IFS).

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Sergio G. Leon-Saval, Christopher H. Betters, Joss Bland-Hawthorn. 2012-08-15. The Photonic TIGER: a multicore fiber-fed spectrograph. https://doi.org/10.1117/12.925254

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