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Proceedings Paper

PMAS fiber module: design, manufacture, and performance optimization
Author(s): Andreas Kelz; Martin M. Roth; Thomas Becker; Svend-Marian Bauer
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Paper Abstract

PMAS, the Potsdam Multi-Aperture Spectrophotometer, is a new integral field (IF or 3D) instrument. It features a lenslet/optical fiber type integral field module and a dedicated fiber spectrograph. As the instrumental emphasis is on photometric stability and high efficiency, good flat field characteristic across the integral field is needed. The PMAS fiber module is unique in the sense that the design allows the replacement of individual fibers. This property, together with the fact that the fibers are index-matched at both ends, makes it possible to achieve and maintain a high efficiency. We present the opto-mechanical design for this fiber-module and, using various data sets from previous observing runs, demonstrate the increase of performance as a result of the optimization of the fiber-components.

Paper Details

Date Published: 30 January 2003
PDF: 12 pages
Proc. SPIE 4842, Specialized Optical Developments in Astronomy, (30 January 2003); doi: 10.1117/12.457410
Show Author Affiliations
Andreas Kelz, Astrophysikalisches Institut Potsdam (Germany)
Martin M. Roth, Astrophysikalisches Institut Potsdam (Germany)
Thomas Becker, Astrophysikalisches Institut Potsdam (Germany)
Svend-Marian Bauer, Astrophysikalisches Institut Potsdam (Germany)

Published in SPIE Proceedings Vol. 4842:
Specialized Optical Developments in Astronomy
Eli Atad-Ettedgui; Sandro D'Odorico, Editor(s)

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