PMAS fiber module: design, manufacture, and performance optimization

Andreas Kelz; Martin M. Roth; Thomas Becker; Svend-Marian Bauer

doi:10.1117/12.457410

30 January 2003 PMAS fiber module: design, manufacture, and performance optimization

Andreas Kelz, Martin M. Roth, Thomas Becker, Svend-Marian Bauer

Proceedings Volume 4842, Specialized Optical Developments in Astronomy; (2003) https://doi.org/10.1117/12.457410
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

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.

Citation Download Citation

Andreas Kelz, Martin M. Roth, Thomas Becker, and Svend-Marian Bauer "PMAS fiber module: design, manufacture, and performance optimization", Proc. SPIE 4842, Specialized Optical Developments in Astronomy, (30 January 2003); https://doi.org/10.1117/12.457410

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