Eur. Phys. J. D 48, 57-66 (2008)
https://doi.org/10.1140/epjd/e2008-00099-9

Astronomical spectrograph calibration with broad-spectrum frequency combs

¹ National Institute of Standards and Technology, Time and Frequency Division, 80305, Boulder, CO, USA
² University of Colorado, Center for Astrophysics and Space Astronomy, Boulder, CO, USA

Corresponding author: ^a braje@nist.gov

Received: 4 March 2008
Revised: 23 April 2008
Published online: 29 May 2008

Abstract

Broadband femtosecond-laser frequency combs are filtered to spectrographically resolvable frequency-mode spacing, and limitations of using cavities for spectral filtering are considered. Data and theory are used to show implications relevant to spectrographic calibration of high-resolution, astronomical spectrometers.