Study of Brillouin scattering in a phosphosilicate optical fibre and its influence on a Raman laser operation

Stimulated Brillouin scattering (SBS) of single-frequency radiation in an AllWave™ telecommunication fibre and a phosphosilicate fibre is studied. The frequency shift and stimulated Raman gain are measured. The emission spectrum of a phosphosilicate Raman fibre laser is studied in the near-threshold regime. It is shown that SBS does not broaden the output emission spectrum of the Raman laser.