The NEID spectrometer: fibre injection system design

Christian Schwab; Andrew J. Monson; Shubham Kanodia; Emily Lubar; Andrea S. J. Lin; Colin Nitroy; Samuel Halverson; Qian Gong; Ryan C. Terrien; Joe P. Ninan; Chad Bender; Cullen Blake; Frederick R. Hearty; Suvrath Mahadevan; Michael W. McElwain; Paul M. Robertson; Arpita Roy; Gudmundur Stefansson

doi:10.1117/12.2563248

13 December 2020 The NEID spectrometer: fibre injection system design

Christian Schwab, Andrew J. Monson, Shubham Kanodia, Emily Lubar, Andrea S. J. Lin, Colin Nitroy, Samuel Halverson, Qian Gong, Ryan C. Terrien, Joe P. Ninan, Chad Bender, Cullen Blake, Frederick R. Hearty, Suvrath Mahadevan, Michael W. McElwain, Paul M. Robertson, Arpita Roy, Gudmundur Stefansson

Author Affiliations +

Proceedings Volume 11447, Ground-based and Airborne Instrumentation for Astronomy VIII; 114474L (2020) https://doi.org/10.1117/12.2563248
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

NEID is a high resolution echelle spectrograph designed to enable extremely precise Doppler radial velocity observations of stars in the 380-930nm wavelength range1. It has recently been installed at the 3.5m WIYN telescope at Kitt Peak National Observatory, and is currently being commissioned. The design is based on a white pupil layout with a monolithic parabolic primary mirror and a 195mm pupil size on the R4 Echelle grating. Here we describe the optical and mechanical design, assembly, and alignment of the fiber injection system which converts the native focal ratio of the sky, calibration, and science fibers to the focal ratio required to form the 195mm collimated beam.

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Christian Schwab, Andrew J. Monson, Shubham Kanodia, Emily Lubar, Andrea S. J. Lin, Colin Nitroy, Samuel Halverson, Qian Gong, Ryan C. Terrien, Joe P. Ninan, Chad Bender, Cullen Blake, Frederick R. Hearty, Suvrath Mahadevan, Michael W. McElwain, Paul M. Robertson, Arpita Roy, and Gudmundur Stefansson "The NEID spectrometer: fibre injection system design", Proc. SPIE 11447, Ground-based and Airborne Instrumentation for Astronomy VIII, 114474L (13 December 2020); https://doi.org/10.1117/12.2563248

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