Ycas, G.
, Quinlan, F.
, Diddams, S.
, Osterman, S.
, Bender, C.
, Botzer, B.
, Ramsey, L.
, Terrien, R.
, Mahadevan, S.
and Redman, S.
(2012),
Demonstration of on-sky calibration of astronomical spectra using a 20 GHz near-IR laser frequency comb, Optics Express, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=910016
(Accessed October 18, 2025)
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Demonstration of on-sky calibration of astronomical spectra using a 20 GHz near-IR laser frequency comb
Published
Author(s)
, , , Steve Osterman, Chad F. Bender, Brandon Botzer, Lawrence W. Ramsey, Ryan Terrien, Suvrath Mahadevan,
Abstract
We describe and characterize a 25 GHz laser frequency comb based on a cavity-filtered erbium fiber mode-locked laser that provides a uniform array of optical frequencies stabilized using the GPS-system atomic clocks spanning 14751625 nm. This comb was transported to the Hobby-Eberly telescope at the McDonald observatory where it was used to calibrate the Pathfinder near-infrared spectrograph. Stellar targets were observed in 3 echelle orders over 4 nights.Citation
Optics Express
Volume
20
Issue
6
Pub Type
Journals
Download Paper
Keywords
Astronomy and astrophysics, Infrared Spectroscopy, Laser frequency combs, Ultrafast nonlinear optics
Citation
Issues
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Created March 6, 2012, Updated February 19, 2017