The Photonic TIGER: a multicore fiber-fed spectrograph

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

doi:10.1117/12.925254

13 September 2012 The Photonic TIGER: a multicore fiber-fed spectrograph

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

Proceedings Volume 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II; 84501K (2012) https://doi.org/10.1117/12.925254
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

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).

Citation Download Citation

Sergio G. Leon-Saval, Christopher H. Betters, and Joss Bland-Hawthorn "The Photonic TIGER: a multicore fiber-fed spectrograph", Proc. SPIE 8450, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation II, 84501K (13 September 2012); https://doi.org/10.1117/12.925254

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