LD-pumped 1.48-/spl mu/m laser based on Yb-doped double-clad fiber and phosphorosilicate-fiber Raman converter

An all-fiber 1.48-/spl mu/m generator based on a LD-pumped Yb-doped double-clad laser with intracavity Raman wavelength conversion has been developed. Second-order Raman Stokes radiation was generated in a phosphorosilicate-resonator formed by two pair of Bragg gratings.