Closed-loop locking of an optical frequency comb to a large ring laser.

@article{Schreiber2013ClosedloopLO,
  title={Closed-loop locking of an optical frequency comb to a large ring laser.},
  author={Karl Ulrich Schreiber and Andre Gebauer and J-P R. Wells},
  journal={Optics letters},
  year={2013},
  volume={38 18},
  pages={3574-7}
}
We report on the frequency locking of a 16  m2 ring laser to a single tooth of an optical frequency comb referenced to a hydrogen maser, obtaining a frequency stability of 1 kHz over several days. In common mode operation, where the counterpropagating laser beams run on the same longitudinal mode index, a sensitivity to rotation of 3×10(-9) relative to… CONTINUE READING