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Cascaded Brillouin lasing in monolithic barium fluoride whispering gallery mode resonators

  • Guoping Lin*
  • , Souleymane Diallo
  • , Khaldoun Saleh
  • , Romain Martinenghi
  • , Jean Charles Beugnot
  • , Thibaut Sylvestre
  • , Yanne K. Chembo
  • *Corresponding author for this work
  • University de Franche-Comté

Research output: Contribution to journalArticlepeer-review

Abstract

We report the observation of stimulated Brillouin scattering and lasing at 1550 nm in barium fluoride (BaF2) crystal. Brillouin lasing was achieved with ultra-high quality (Q) factor monolithic whispering gallery mode mm-size disk resonators. Overmoded resonators were specifically used to provide cavity resonances for both the pump and all Brillouin Stokes waves. Single and multiple Brillouin Stokes radiations with frequency shift ranging from 8.2 GHz up to 49 GHz have been generated through cascaded Brillouin lasing. BaF2 resonator-based Brillouin lasing can find potential applications for high-coherence lasers and microwave photonics.

Original languageEnglish
Article number231103
JournalApplied Physics Letters
Volume105
Issue number23
DOIs
StatePublished - 8 Dec 2014
Externally publishedYes

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