Application of a self-injection locked cyan laser for Barium ion cooling and spectroscopy

Compact, high power lasers with narrow linewidth are important tools for the manipulation of quantum systems. We demonstrate a compact, self-injection locked, Fabry-Perot semiconductor laser diode with high output power at 493 nm. A high quality factor magnesium fluoride whispering gallery mode reso...

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Bibliographic Details
Published in:Scientific reports 2020-10, Vol.10 (1), p.16494-16494, Article 16494
Main Authors: Savchenkov, Anatoliy A., Christensen, Justin E., Hucul, David, Campbell, Wesley C., Hudson, Eric R., Williams, Skip, Matsko, Andrey B.
Format: Article
Language:English
Subjects:
639/624/1020
639/766/36/1121
639/766/36/1125
Barium
Humanities and Social Sciences
Information processing
Injection
Lasers
Magnesium
multidisciplinary
Science
Science (multidisciplinary)
Spectroscopy
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Summary:Compact, high power lasers with narrow linewidth are important tools for the manipulation of quantum systems. We demonstrate a compact, self-injection locked, Fabry-Perot semiconductor laser diode with high output power at 493 nm. A high quality factor magnesium fluoride whispering gallery mode resonator enables both high passive stability and 1 kHz instantaneous linewidth. We use this laser for laser-cooling, in-situ isotope purifcation, and probing barium atomic ions confined in a radio-frequency ion trap. The results here demonstrate the suitability of these lasers in trapped ion quantum information processing and for probing weak coherent optical transitions.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-020-73373-w