A diode laser system for spectroscopy of the ultranarrow transition in ytterbium atoms

A. Yamaguchi, S. Uetake, Y. Takahashi

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

A narrow-line diode laser system has been developed for high-resolution spectroscopy of the magnetic quadrupole transition in ytterbium (Yb) atoms at 507 nm. The system consists of an extended-cavity laser diode at 1014 nm, a tapered amplifier and a periodically poled lithium niobate nonlinear crystal which converts the wavelength from 1014 nm to 507 nm. We have stabilized the laser frequency and reduced the linewidth below 1 kHz by tightly locking the laser to a high-finesse optical cavity. By using the developed laser system, we have successfully observed the ultranarrow 1S0 ↔ 3 P2 transition in Yb atoms. Furthermore, our simple and compact laser system could be a high performance and portable frequency reference using iodine spectra whose linewidth becomes less than 50 kHz around 507 nm. We have also demonstrated spectroscopy of iodine molecules.

Original languageEnglish
Pages (from-to)57-60
Number of pages4
JournalApplied Physics B: Lasers and Optics
Volume91
Issue number1
DOIs
Publication statusPublished - Apr 1 2008
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

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