Phillips, DavidGlenday, AlexanderLi, Chih-HaoCramer, ClaireFuresz, GaborChang, GuoqingBenedick, Andrew J.Chen, Li-JinSzentgyorgyi, AndrewWalsworth, Ronald2014-03-102012Phillips, David F., Alexander G. Glenday, Chih-Hao Li, Claire Cramer, Gabor Furesz, Guoqing Chang, Andrew J. Benedick, et al. 2012. Calibration of an Astrophysical Spectrograph Below 1 m/s Using a Laser Frequency Comb. Optics Express 20, no. 13: 13711-13726.1094-4087http://nrs.harvard.edu/urn-3:HUL.InstRepos:11878774We deployed two wavelength calibrators based on laser frequency combs (“astro-combs”) at an astronomical telescope. One astro- comb operated over a 100 nm band in the deep red (∼ 800 nm) and a second operated over a 20 nm band in the blue (∼ 400 nm). We used these red and blue astro-combs to calibrate a high-resolution astrophysical spectrograph integrated with a 1.5 m telescope, and demonstrated calibration precision and stability sufficient to enable detection of changes in stellar radial velocity < 1 m/s.en-USSpectrometers and spectroscopic instrumentationSpectroscopyJournal Article2014-03-1010.1364/OE.20.013711