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Characteristics of amplified spectrum of a weak frequency-detuned signal in a Brillouin amplifier

  • Harbin Institute of Technology
  • Harbin University of Science and Technology

Research output: Contribution to journalArticlepeer-review

Abstract

We will theoretically and experimentally study the effect of the linewidth and the frequency of a weak detuned signal on its amplified spectrum in the Brillouin amplifier. We will show that the spectral profile of the input signal is preserved during amplification only when the signal linewidth is much narrower than the Brillouin linewidth of the amplifier. If the signal linewidth is near or above the Brillouin linewidth, the frequency shift of the amplified signal with respect to the pump will be close to the Brillouin shift of the amplifier, and will be independent of the frequency shift of the input signal.

Original languageEnglish
Pages (from-to)465-470
Number of pages6
JournalLaser and Particle Beams
Volume27
Issue number3
DOIs
StatePublished - Sep 2009

Keywords

  • Amplified signal spectrum
  • Brillouin amplification
  • Frequency detuning
  • Stimulated Brillouin scattering

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