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Proceedings Paper

Multi-fiber coupling through a miniature lens system into the FOCES spectrograph
Author(s): Hanna Kellermann; Frank Grupp; Anna Brucalassi; Liang Wang; Nils Baisert; Florian Lang-Bardl; Ulrich Hopp; Ralf Bender
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Paper Abstract

We present a new fiber-based light injection system for the high resolution spectrograph FOCES (Fiber Optics Cassegrain Echelle Spectrograph)1 which will soon start operating at the Wendelstein Observatory. The new system consists of several components such as a 4-fiber assembly (for simultaneous calibration), a new miniature lens system to reimage the light leaving the fibers onto the slit, as well as a new slit mask. The whole concept is specifically designed to provide high-accuracy, long-term stability for accurate radial velocity measurements and stellar atmosphere analyses.

Paper Details

Date Published: 9 August 2016
PDF: 7 pages
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 990863 (9 August 2016); doi: 10.1117/12.2231389
Show Author Affiliations
Hanna Kellermann, Max-Planck-Institut für extraterrestrische Physik (Germany)
Univ.-Sternwarte München (Germany)
Frank Grupp, Max-Planck-Institut für extraterrestrische Physik (Germany)
Univ.-Sternwarte München (Germany)
Anna Brucalassi, Max-Planck-Institut für extraterrestrische Physik (Germany)
Liang Wang, Univ.-Sternwarte München (Germany)
Nils Baisert, Univ.-Sternwarte München (Germany)
Florian Lang-Bardl, Univ.-Sternwarte München (Germany)
Ulrich Hopp, Max-Planck-Institut für extraterrestrische Physik (Germany)
Univ.-Sternwarte München (Germany)
Ralf Bender, Max-Planck-Institut für extraterrestrische Physik (Germany)
Univ.-Sternwarte München (Germany)


Published in SPIE Proceedings Vol. 9908:
Ground-based and Airborne Instrumentation for Astronomy VI
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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