Frequency stabilization of an ultraviolet laser to ions in a discharge

  title={Frequency stabilization of an ultraviolet laser to ions in a discharge},
  author={E. Streed and T. Weinhold and D. Kielpinski},
  journal={Applied Physics Letters},
  • E. Streed, T. Weinhold, D. Kielpinski
  • Published 2008
  • Physics
  • Applied Physics Letters
  • We stabilize an ultraviolet diode laser system at 369.5 nm to the optical absorption signal from Yb+ ions in a hollow-cathode discharge lamp. The error signal for stabilization is obtained by Zeeman spectroscopy of the 3 GHz wide absorption feature. The frequency stability is independently measured by comparison to the fluorescence signal from a laser-cooled crystal of Y174b+ ions in a linear Paul trap. We measure a frequency fluctuation of 1.7 MHz over 1000 s and a frequency drift of 20 MHz… CONTINUE READING
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