Prospects for a millihertz-linewidth laser.

  title={Prospects for a millihertz-linewidth laser.},
  author={Dominic Meiser and Jun Ye and David R. Carlson and Murray J. Holland},
  journal={Physical review letters},
  volume={102 16},
We propose a new light source based on having alkaline-earth atoms in an optical lattice collectively emit photons on an ultranarrow clock transition into the mode of a high Q resonator. The resultant optical radiation has an extremely narrow linewidth in the mHz range, even smaller than that of the clock transition itself due to collective effects. A power level of order 10;{-12} W is possible, sufficient for phase locking a slave optical local oscillator. Realizing this light source has the… CONTINUE READING
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