Phillips, D.
, Glenday, A.
, Li, C.
, Cramer, C.
, Furesz, G.
, Chang, G.
, Benedick, A.
, Chen, L.
, Kaertner, F.
, Korzennik, S.
, Sasselov, D.
, Szentgyorgyi, A.
and Walsworth, R.
(2012),
Calibration of an Astrophysical Spectrograph below 1 m/s using a Laser Frequency Comb, Optics Express
(Accessed October 16, 2025)
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Calibration of an Astrophysical Spectrograph below 1 m/s using a Laser Frequency Comb
Published
Author(s)
David F. Phillips, Alexander G. Glenday, Chih-hao Li, , Gabor Furesz, Guoquing Chang, Andrew Benedick, Li-Jin Chen, F X. Kaertner, Sylvain G. Korzennik, Dimitar Sasselov, Andrew Szentgyorgyi, Ronald L. Walsworth
Abstract
We deployed two wavelength calibrators based on laser frequency combs ("astro-combs") at an astronomical observatory. 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.Citation
Optics Express
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Created June 3, 2012, Updated October 12, 2021