We want to put 2 Watt of 665.0 nm light through a 20 m long polarization maintaining fiber. We are searching for a fiber which has low Stimulated Brillouin scattering (SBS) loss at that wavelength.
Raw fiber manufacturers such as Nippon Sheet Glass (NSG) or Schott Corporation are known to produce such fibers with low SBS. But cannot give a specific fiber reference or source