Development of the single-mode fiber integral field unit for the RHEA Spectrograph

Adam D. Rains; Michael J. Ireland; Nemanja Jovanovic; Joao Bento; Tobias Feger; Julien Lozi; Christian Schwab; David W. Coutts; Olivier Guyon; Alexander Arriola; Simon Gross; Jonathan E. Harris

doi:10.1117/12.2314336

6 July 2018 Development of the single-mode fiber integral field unit for the RHEA Spectrograph

Adam D. Rains, Michael J. Ireland, Nemanja Jovanovic, Joao Bento, Tobias Feger, Julien Lozi, Christian Schwab, David W. Coutts, Olivier Guyon, Alexander Arriola, Simon Gross, Jonathan E. Harris

Author Affiliations +

Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 107025J (2018) https://doi.org/10.1117/12.2314336
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

RHEA is a single-mode ´echelle spectrograph designed to be a replicable and cost effective method of undertaking precision radial velocity measurements. The instrument has a novel fiber feed with an integral field unit injecting into a grid of single-mode fibers reformatted to form a pseudo-slit, increasing throughput and enabling highspatial resolution observations when operating behind Subaru and the SCExAO adaptive optics system. The past 18 months have seen a replacement cable constructed for the instrument to address modal noise caused by closely packed fibers with similar path lengths. Here we detail the cable fabrication procedure, design improvements, increased precision in meeting the required sub-micron optical tolerances, throughput gains, and known remaining issues.

Citation Download Citation

Adam D. Rains, Michael J. Ireland, Nemanja Jovanovic, Joao Bento, Tobias Feger, Julien Lozi, Christian Schwab, David W. Coutts, Olivier Guyon, Alexander Arriola, Simon Gross, and Jonathan E. Harris "Development of the single-mode fiber integral field unit for the RHEA Spectrograph", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107025J (6 July 2018); https://doi.org/10.1117/12.2314336

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available