Planar-waveguide external cavity laser stabilization for an optical link with 10-19 frequency stability

  title={Planar-waveguide external cavity laser stabilization for an optical link with 10-19 frequency stability},
  author={Cecilia Clivati and Alberto Mura and Davide Calonico and Filippo Levi and Giovanni A. Costanzo and Claudio E. Calosso and Aldo Godone},
  journal={IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control},
  • C. Clivati, A. Mura, A. Godone
  • Published 7 July 2011
  • Physics
  • IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
We stabilized the frequency of a compact planar-waveguide external cavity laser (ECL) on a Fabry-Perot cavity (FPC) through a Pound-Drever-Hall scheme. The residual frequency stability of the ECL is 10-14, comparable to the stability achievable with a fiber laser (FL) locked to an FPC through the same scheme. We set up an optical link of 100 km, based on fiber spools, that reaches 10-19 relative stability, and we show that its performances using the ECL or FL are comparable. Thus ECLs could… 

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