Broadband, unpolarized repumping and clearout light sources for Sr+ single-ion clocks

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Abstract

Future transportable optical clocks require compact and reliable light sources. Here, broadband, unpolarized repumper and state clearout sources for Sr+ single-ion optical clocks are reported. These turn-key devices require no frequency stabilization or external modulators. They are fiber based, inexpensive, and compact. Key characteristics for clock operation are presented, including optical spectra, induced light shifts, and required extinction ratios. Tests with an operating single-ion standard show a clearout efficiency of 100%. Compared to a laser-based repumper, the achievable fluorescence rates for ion detection are a few tens of percent lower. The resulting ion kinetic temperature is 1-1.5 mK, near the Doppler limit of the ion system. Similar repumper light sources could be made for Ca+ (866 nm) and Ba+ (650 nm) using semiconductor gain media.

Original languageEnglish
Pages (from-to)1822-1825
JournalOptics Letters
Volume40
Issue number8
DOIs
Publication statusPublished - 1 Jan 2015
MoE publication typeA1 Journal article-refereed

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clocks
light sources
broadband
ions
optical spectrum
modulators
extinction
stabilization
fluorescence
fibers
shift
kinetics
lasers
temperature

Keywords

  • spectroscopy, trapped ion
  • metrology
  • fiber optics
  • fiber devices and optical amplifiers

Cite this

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title = "Broadband, unpolarized repumping and clearout light sources for Sr+ single-ion clocks",
abstract = "Future transportable optical clocks require compact and reliable light sources. Here, broadband, unpolarized repumper and state clearout sources for Sr+ single-ion optical clocks are reported. These turn-key devices require no frequency stabilization or external modulators. They are fiber based, inexpensive, and compact. Key characteristics for clock operation are presented, including optical spectra, induced light shifts, and required extinction ratios. Tests with an operating single-ion standard show a clearout efficiency of 100{\%}. Compared to a laser-based repumper, the achievable fluorescence rates for ion detection are a few tens of percent lower. The resulting ion kinetic temperature is 1-1.5 mK, near the Doppler limit of the ion system. Similar repumper light sources could be made for Ca+ (866 nm) and Ba+ (650 nm) using semiconductor gain media.",
keywords = "spectroscopy, trapped ion, metrology, fiber optics, fiber devices and optical amplifiers",
author = "Thomas Fordell and Thomas Lindvall and P. Dub{\'e} and Madej, {A. A.} and Wallin, {Anders E.} and Mikko Merimaa",
note = "Project code: 104545",
year = "2015",
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doi = "10.1364/OL.40.001822",
language = "English",
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pages = "1822--1825",
journal = "Optics Letters",
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publisher = "Optical Society of America OSA",
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}

Broadband, unpolarized repumping and clearout light sources for Sr+ single-ion clocks. / Fordell, Thomas; Lindvall, Thomas; Dubé, P.; Madej, A. A.; Wallin, Anders E.; Merimaa, Mikko.

In: Optics Letters, Vol. 40, No. 8, 01.01.2015, p. 1822-1825.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Broadband, unpolarized repumping and clearout light sources for Sr+ single-ion clocks

AU - Fordell, Thomas

AU - Lindvall, Thomas

AU - Dubé, P.

AU - Madej, A. A.

AU - Wallin, Anders E.

AU - Merimaa, Mikko

N1 - Project code: 104545

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Future transportable optical clocks require compact and reliable light sources. Here, broadband, unpolarized repumper and state clearout sources for Sr+ single-ion optical clocks are reported. These turn-key devices require no frequency stabilization or external modulators. They are fiber based, inexpensive, and compact. Key characteristics for clock operation are presented, including optical spectra, induced light shifts, and required extinction ratios. Tests with an operating single-ion standard show a clearout efficiency of 100%. Compared to a laser-based repumper, the achievable fluorescence rates for ion detection are a few tens of percent lower. The resulting ion kinetic temperature is 1-1.5 mK, near the Doppler limit of the ion system. Similar repumper light sources could be made for Ca+ (866 nm) and Ba+ (650 nm) using semiconductor gain media.

AB - Future transportable optical clocks require compact and reliable light sources. Here, broadband, unpolarized repumper and state clearout sources for Sr+ single-ion optical clocks are reported. These turn-key devices require no frequency stabilization or external modulators. They are fiber based, inexpensive, and compact. Key characteristics for clock operation are presented, including optical spectra, induced light shifts, and required extinction ratios. Tests with an operating single-ion standard show a clearout efficiency of 100%. Compared to a laser-based repumper, the achievable fluorescence rates for ion detection are a few tens of percent lower. The resulting ion kinetic temperature is 1-1.5 mK, near the Doppler limit of the ion system. Similar repumper light sources could be made for Ca+ (866 nm) and Ba+ (650 nm) using semiconductor gain media.

KW - spectroscopy, trapped ion

KW - metrology

KW - fiber optics

KW - fiber devices and optical amplifiers

U2 - 10.1364/OL.40.001822

DO - 10.1364/OL.40.001822

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JO - Optics Letters

JF - Optics Letters

SN - 0146-9592

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