Characterization of coherent population-trapping resonances as atomic frequency references

Journal Article (Academic article)

{A low-cost, potentially compact and robust microwave frequency reference can be constructed by use of vertical-cavity surface-emitting lasers and coherent population-trapping resonances in Cs vapor cells. Fractional frequency instabilities of 2 x 10(-11)/root tau /s have been achieved with a minimum of 7 x 10(-13) at tau = 1000s. The performance of this device as a function of external parameters such as light intensity, optical detuning, and cell temperature is discussed. The dependence of the dark-line resonance signal on these parameters can be understood largely by means of a simple, three-level model. The short-term stability depends critically on the optical detuning, whereas the long-term stability is limited currently by line shifts due to drifts in cell temperature.}

Duke Authors

Cited Authors

  • Knappe, S; Wynands, R; Kitching, J; Robinson, HG; Hollberg, L

Published In

Volume / Issue

  • 18 / 11

Start / End Page

  • 1545 - 1553

Published By

International Standard Serial Number (ISSN)

  • 0740-3224

Conference Location