Xavier Fernandez-Gonzalvo

Cavity enhanced Raman heterodyne spectroscopy in Er:YSO for microwave to optical signal conversion

  1. Xavier Fernandez-Gonzalvo,
  2. Sebastian P. Horvath,
  3. Yu-Hui Chen,
  4. and Jevon J. Longdell
The efficiency of the frequency conversion process at the heart of Raman heterodyne spectroscopy was improved by nearly four orders of magnitude by resonant enhancement of both the
pump and signal optical fields. Our results using an erbium doped Y2SiO5 crystal at temperatures near 4K suggest that such an approach is promising for the quantum conversion of microwave to optical photons.
arxiv pdf