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Study on stability of stimulated Brillouin scattering (SBS) pumped by a pulse with steep leading edge

  • Weiming He*
  • , Zhiwei Lu
  • , Qi Wang
  • , Zuguang Ma
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

The stability of SBS conversion efficiency and phase-conjugation (PC) fidelity mainly depends on the leading edge of pump pulse. If the rise time of the leading edge of the pump pulse is near to the acoustic phonon lifetime of SBS medium and pump energy is well over the SBS threshold, the SBS PC fidelity will become very unstable. For pump pulse with 2 ns leading edge and CCl4 medium with about 1 ns acoustic phonon lifetime, when a small slow rising signal was introduced at the front foot of the pump pulse's leading edge, a stable SBS produced by two-cell SBS PC mirror was obtained even for pump pulse energy exceeding SBS threshold by 500 times. The fluctuation of the SBS conversion efficiency is within 4%, and that of the PC fidelity is within 5%.

Original languageEnglish
Pages (from-to)1431-1436
Number of pages6
JournalGuangxue Xuebao/Acta Optica Sinica
Volume16
Issue number10
StatePublished - Oct 1996

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