Overview of the Spectrometer Optical Fiber feed for the Habitable-zone Planet Finder

Shubham Kanodia, Suvrath Mahadevan, Lawrence. W. Ramsey, Gudmundur K. Stefansson, Andrew J. Monson, Frederick R. Hearty, Scott Blakeslee, Emily Lubar, Chad F. Bender, J. P. Ninan, David Sterner, Arpita Roy, Samuel P. Halverson, Paul M. Robertson
(Submitted on 1 Aug 2018)

The Habitable-zone Planet Finder (HPF) is a highly stabilized fiber fed precision radial velocity (RV) spectrograph working in the Near Infrared (NIR): 810 – 1280 nm . In this paper we present an overview of the preparation of the optical fibers for HPF. The entire fiber train from the telescope focus down to the cryostat is detailed. We also discuss the fiber polishing, splicing and its integration into the instrument using a fused silica puck. HPF was designed to be able to operate in two modes, High Resolution (HR- the only mode mode currently commissioned) and High Efficiency (HE). We discuss these fiber heads and the procedure we adopted to attach the slit on to the HR fibers.

Comments:    Presented at 2018 SPIE Astronomical Telescopes + Instrumentation, Austin, Texas, USA. 18 pages, 25 figures, and 2 tables
Subjects:    Instrumentation and Methods for Astrophysics (astro-ph.IM)
Journal reference:    Proc. of SPIE Vol. 10702 107026Q (2018)
DOI:    10.1117/12.2313491
Cite as:    arXiv:1808.00557 [astro-ph.IM] (or arXiv:1808.00557v1 [astro-ph.IM] for this version)
Submission history
From: Shubham Kanodia 
[v1] Wed, 1 Aug 2018 20:47:26 GMT (11425kb,D)
https://arxiv.org/abs/1808.00557
Astrobiology