Rubidium traced etalon wavelength calibrators: towards deployment at observatories

Christian Schwab; Tobias Feger; Julian Stürmer; Andreas Seifahrt; Yulia V. Gurevich; Dmytro Rogozin; Thorsten Führer; Samuel P. Halverson; Ryan C. Terrien; Thomas Legero; David W. Coutts; Gert Raskin; Thomas Walther; Jacob L. Bean; Andreas Quirrenbach

doi:10.1117/12.2314426

9 July 2018 Rubidium traced etalon wavelength calibrators: towards deployment at observatories

Christian Schwab, Tobias Feger, Julian Stürmer, Andreas Seifahrt, Yulia V. Gurevich, Dmytro Rogozin, Thorsten Führer, Samuel P. Halverson, Ryan C. Terrien, Thomas Legero, David W. Coutts, Gert Raskin, Thomas Walther, Jacob L. Bean, Andreas Quirrenbach

Author Affiliations +

Proceedings Volume 10702, Ground-based and Airborne Instrumentation for Astronomy VII; 1070272 (2018) https://doi.org/10.1117/12.2314426
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

Precise wavelength calibration is a persistent problem for highest precision Doppler spectroscopy. The ideal calibrator provides an extremely stable spectrum of equidistant, narrow lines over a wide bandwidth, is reliable over timescales of years, and is simple to operate. Unlike traditional hollow cathode lamps, etalons provide an engineered spectrum with adjustable line distance and width and can cover a very broad spectral bandwidth. We have shown that laser locked etalons provide the necessary stability with an ideal spectral format for calibrating precision Echelle spectrographs, in a cost-effective and robust package. Anchoring the etalon spectrum to a very precisely known hyperfine transition of rubidium delivers cm/s-level stability over timescales of years. We have engineered a fieldable system which is currently being constructed as calibrator for the MAROON-X, HERMES, KPF, FIES and iLocater spectrographs.

Citation Download Citation

Christian Schwab, Tobias Feger, Julian Stürmer, Andreas Seifahrt, Yulia V. Gurevich, Dmytro Rogozin, Thorsten Führer, Samuel P. Halverson, Ryan C. Terrien, Thomas Legero, David W. Coutts, Gert Raskin, Thomas Walther, Jacob L. Bean, and Andreas Quirrenbach "Rubidium traced etalon wavelength calibrators: towards deployment at observatories", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 1070272 (9 July 2018); https://doi.org/10.1117/12.2314426

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