Publications by Philipp Hörler

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A system of 5020 robotic fiber positioners was installed in 2019 on the Mayall Telescope, at Kitt Peak National Observatory. The robots automatically retarget their optical fibers every 10-20 minutes, each to a precision of several microns, with a reconfig ...

This paper describes the design of an optical metrology system for fiber positioners. The system can be used for accurate calibration and verification of fiber positioners with SCARA-like RR planar kinematics. It is capable of measuring accurately the abso ...

The recent burgeoning interest in massive multiobject spectroscopy has pushed the development of massive optical fiber positioning systems. These systems rely on precise fiber placement to detect the light spectra of many stars and galaxies. One successful ...

We describe here a novel design of a fast high-density robotized fiber positioner system for massive spectroscopic surveys. The fiber positioners are compact, robust, and they can be coordinated, allowing for a high spatial density. Furthermore, the high a ...

Philipp Hörler

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The Robotic Multiobject Focal Plane System of the Dark Energy Spectroscopic Instrument (DESI)

Design and performances of an optical metrology system to test position and tilt accuracy of fiber positioners

Optical test procedure for characterization and calibration of robotic fiber positioners for multiobject spectrographs

High density fiber postitioner system for massive spectroscopic surveys