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Proceedings Paper

A microlens-array based pupil slicer and double scrambler for MAROON-X
Author(s): Andreas Seifahrt; Julian Stürmer; Jacob L. Bean
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Paper Abstract

We report on the design and construction of a microlens-array (MLA)-based pupil slicer and double scrambler for MAROON-X, a new fiber-fed, red-optical, high-precision radial-velocity spectrograph for one of the twin 6.5m Magellan Telescopes in Chile. We have constructed a 3X slicer based on a single cylindrical MLA and show that geometric efficiencies of ≥85% can be achieved, limited by the fill factor and optical surface quality of the MLA. We present here the final design of the 3x pupil slicer and double scrambler for MAROON-X, based on a dual MLA design with (a)spherical lenslets. We also discuss the techniques used to create a pseudo-slit of rectangular core fibers with low FRD levels.

Paper Details

Date Published: 22 July 2016
PDF: 9 pages
Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 99121P (22 July 2016); doi: 10.1117/12.2232118
Show Author Affiliations
Andreas Seifahrt, The Univ. of Chicago (United States)
Julian Stürmer, The Univ. of Chicago (United States)
Jacob L. Bean, The Univ. of Chicago (United States)


Published in SPIE Proceedings Vol. 9912:
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II
Ramón Navarro; James H. Burge, Editor(s)

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