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Published August 6, 2014 | Published
Book Section - Chapter Open

Design, motivation, and on-sky tests of an efficient fiber coupling unit for 1-meter class telescopes

Abstract

We present the science motivation, design, and on-sky test data of a high-throughput fiber coupling unit suitable for automated 1-meter class telescopes. The optical and mechanical design of the fiber coupling is detailed and we describe a flexible controller software designed specifically for this unit. The system performance is characterized with a set of numerical simulations, and we present on-sky results that validate the performance of the controller and the expected throughput of the fiber coupling. This unit was designed specifically for the MINERVA array, a robotic observatory consisting of multiple 0.7 m telescopes linked to a single high-resolution stabilized spectrograph for the purpose of exoplanet discovery using high-cadence radial velocimetry. However, this unit could easily be used for general astronomical purposes requiring fiber coupling or precise guiding.

Additional Information

© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE). MB is supported by a NASA Space Technology Research Fellowship, and would like to acknowledge Kevin Ivarsen of PlaneWave Instruments for valuable assistance and discussions. JAJ is grateful for the generous grant support provided by the Alfred P. Sloan and David and Lucile Packard foundations. PPP acknowledges support from the JPL Research and Technology Development program. J.T.W. is affiliated with the Center for Exoplanets and Habitable Worlds, which is supported by the Pennsylvania State University, the Eberly College of Science, and the Pennsylvania Space Grant Consortium; and by the Penn State Astrobiology Research Center, part of the NASA Astrobiology Institute (grant NNA09DA76A). RW acknowledges support from the Australian Research Council LIEF grant LE140100050 and Major Research Equipment funding from UNSW.

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