Demonstration of a near-IR line-referenced electro-optical laser frequency comb for precision radial velocity measurements in astronomy

X. Yi; K. Vahala; J. Li; S. Diddams; G. Ycas; P. Plavchan; S. Leifer; J. Sandhu; G. Vasisht; P. Chen; P. Gao; J. Gagne; E. Furlan; M. Bottom; E. C. Martin; M. P. Fitzgerald; G. Doppmann; C. Beichman

doi:10.1038/ncomms10436

Nature Communications (Jan 2016)

Demonstration of a near-IR line-referenced electro-optical laser frequency comb for precision radial velocity measurements in astronomy

X. Yi,
K. Vahala,
J. Li,
S. Diddams,
G. Ycas,
P. Plavchan,
S. Leifer,
J. Sandhu,
G. Vasisht,
P. Chen,
P. Gao,
J. Gagne,
E. Furlan,
M. Bottom,
E. C. Martin,
M. P. Fitzgerald,
G. Doppmann,
C. Beichman

Affiliations

X. Yi: Department of Applied Physics and Materials Science
K. Vahala: Department of Applied Physics and Materials Science
J. Li: Department of Applied Physics and Materials Science
S. Diddams: National Institute of Standards and Technology
G. Ycas: National Institute of Standards and Technology
P. Plavchan: Department of Physics, Missouri State University
S. Leifer: Jet Propulsion Laboratory, California Institute of Technology
J. Sandhu: Jet Propulsion Laboratory, California Institute of Technology
G. Vasisht: Jet Propulsion Laboratory, California Institute of Technology
P. Chen: Jet Propulsion Laboratory, California Institute of Technology
P. Gao: Division of Geological and Planetary Sciences, California Institute of Technology
J. Gagne: Department of Terrestrial Magnetism, Carnegie Institution of Washington
E. Furlan: NASA Exoplanet Science Institute, California Institute of Technology
M. Bottom: Department of Astronomy, California Institute of Technology
E. C. Martin: Department of Physics and Astronomy, University of California Los Angeles
M. P. Fitzgerald: Department of Physics and Astronomy, University of California Los Angeles
G. Doppmann: W.M. Keck Observatory
C. Beichman: NASA Exoplanet Science Institute, California Institute of Technology

DOI: https://doi.org/10.1038/ncomms10436
Journal volume & issue: Vol. 7, no. 1
pp. 1 – 9

Abstract

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Laser frequency combs emit a spectrum of equally spaced peaks that can provide precise frequency references useful for astronomy. Here, the authors demonstrate a frequency comb using electro-optical modulation, which has a line spacing that is resolvable using grating spectrographs unlike the mode-locking approach.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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